Mohammad Haghighi

Mohammad Haghighi
Sahand University of Technology | SUT · Faculty of Chemical Engineering

Professor of Chemical Engineering

About

782
Publications
38,242
Reads
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8,606
Citations
Citations since 2016
219 Research Items
7306 Citations
201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200
Introduction
Following the appointment of Dr Mohammad Haghighi as Director of RCRC at Sahand University of Technology in 2007, SUT’s research activities in the areas of applied catalysis, nanocatalysts, environmental catalysts, reactor design, fuel production and processing, energy, emission control and combustion have significantly changed. At the present, he and his group carry out research at industrial level in frontier areas in catalysis and reactor design as well as environmental issues in industries.
Additional affiliations
September 2003 - September 2007
Curtin University
Position
  • Research Assistant
September 1995 - present
Sahand University of Technology
Position
  • Professor (Associate)
September 1995 - October 2015
Sahand University of Technology
Position
  • Founding Director of Reactor and Catalysis Research Center

Publications

Publications (782)
Article
Full-text available
In this research, simultaneous effect of Si source and CTAB application as surfactant was investigated in SAPO-34 preparation used for MTO process. Prepared samples were evaluated by FESEM, XRD, FTIR, BET and EDX analysis. TEOS application as Si source results in small crystallites of SAPO-34 due to its better solubility and smaller size. Consequen...
Article
Full-text available
In present research, we designed the novel CuS–CdS/ZnO ternary nanophotocatalysts with various weight percentages of ZnO (80 and 90 wt%) via one-pot sono-hydrothermal method. These nanocomposites efficiently use the sunlight irradiation as a neat and endless energy resource, reduce the recombination rate of the photo-produced e⁻–h⁺ pairs, and incre...
Article
The productive 2D chips-like Mn-Fe boosted TiO2 as self-assembled nano-walled honeycomb-like super-macroporous was synthesized via the Mn-Fe catalyzed microwave combustion-plasma hybrid to generate biodiesel. The physicochemical property of Mn-Fe doped TiO2 (Mn = 2at% & Fe = 2at.%) were executed by X-ray diffraction, FESEM, BET-BJH, TEM, and TPD-NH...
Article
The widespread use of organic dyes in industrial applications consistently endangers the eco-system health. The photocatalytic degradation of organic wastewater has been recognized as a highly promising strategy for combating this environmental issue. Herein, A series of bimetallic Co²⁺Cr³⁺LDH anchored AgCl as excellent solar-light-responsive Ag-de...
Article
Ni-based spinel nanocatalysts (NiAl2O4) with various anti-coke materials (Ca, K and W) were fabricated with sol-gel technique followed by plasma treatment and evaluated in hybrid CO2/O2 reforming of methane (CRPOM). To scrutinize the physiochemical properties of nanocatalysts, XRD, FESEM, EDX, TEM, BET, FTIR and TG-DTG analyses were used. XRD patte...
Article
The present research reports on design of mesoporous ZnAl2O4 nanophotocatalysts using various weight percentages of activated charcoal as a carbonaceous template in template-aided microwave-combustion method. The nanophotocatalysts were characterized through XRD, FESEM, TEM, EDX, BET-BJH, DRS, PL and pHpzc analyses. The characterization results dem...
Article
A series of potential bifunctional basic/acidic CaO over hierarchical ZSM-5 nanocatalysts were synthesized and investigated in biofuel production. Secondary hard templating was applied on the ZSM-5 support by carbonaceous charcoal particles in order to increase the pore size in favour of better diffusion of the large triglyceride molecules. The ult...
Conference Paper
Bi2O3-KBi6O7Br and bulk graphitic carbon nitride (g-C3N4) nanophotocatalysts were successfully synthesized via microwave-combustion and thermal decomposition methods, respectively, to treat an antibiotic-contaminated water sample. Characterization of the photocatalysts was carried out by XRD and FESEM techniques. The XRD analysis confirmed the form...
Article
High coke-resistant Ca-promoted NiCo–NiAl2O4 nanocatalysts with different calcium loading (0, 0.25, 0.5 and 1.5 wt%) were synthesized via hybrid sol-gel-plasma method. Synthesized samples were applied in the CH4/CO2/O2 reforming to H2 reactions. Analyses revealed that the calcium addition caused the lower surface area, non-uniform distribution and...
Article
The effect of variable O2 concentrations (5%, 10%, 15%, and 21%) in the injection mixing gas was examined on the properties of MgO/MgAl2O4 nanocatalysts created with solution combustion method for biofuel production. The results of XRD, FESEM, TEM, EDX, BET, FTIR and TG/DTG manifested that among all above-mentioned O2 contents injected into synthes...
Article
In present study, the novel 1D nanobelt-on-0D nanosphere heterostructured Ag-decorated AgVO3/CeO2 photocatalysts as pseudo-type II interface were successfully synthesized at 1:3, 1:1 and 3:1 mass ratios of AgVO3:CeO2 through the ultrasound-promoted hydrothermal design and their photocatalytic performance has been investigated in the degradation of...
Article
Implementation of hierarchical SAPO-34 zeotype, which was synthesized via a hard-template technique using secondary hard template, as a photocatalyst support for ZnO photocatalyst has been investigated. The ZnO/SAPO-34 (AC-U)-U photocatalyst was applied for photodegradation of dye molecules under simulated-solar-light irradiation. X-ray diffraction...
Article
Design of nanocatalysts with promoted anti-coke ability, high catalytic activity and stable performance during oxidative conversion of CH4/CO2 mixture to syngas was the purpose of this study. First, NiAl2O4, WNiAl2O4 and CoWNiAl2O4 nanocatalysts were fabricated using sol-gel technique. Then, plasma treatment was utilized for enhancement of CoWNiAl2...
Article
The present work introduced ultrasonic-promoted growth of staggered heterostructured nanoparticle-on-nanolayer tin(II) oxide-bulk carbon nanophotocatalysts. A series of SnO2-bulk g-C3N4 nanophotocatalysts with various ratios of SnO2 to bulk g-C3N4 (BGCN) were prepared by an ultrasound-promoted solvothermal synthesis approach. The synthesized sample...
Article
A series of CeZrO/Al2O3 nanocatalysts were synthesized via sono-precipitation method for utilization in oxidation of CO. The XRD results showed lower intensity of active phase peaks as the sonication power increased showing higher dispersions. SEM and TEM images showed the destruction of large particle agglomerates and superior dispersion of the Ce...
Article
Background Recently, limited sources of fossil fuels and environmental issues have caused to expanded worldwide search for an alternative clean energy. Among these, steam methanol reforming is the most common industrial kind of mature technology to produce hydrogen. Methods In this regards, a series of Cu-Zn-Al catalysts were synthesized via conve...
Article
The SAPO-34 zeotype with suitable physicochemical properties, was used to produce biodiesel as a clean fuel. The micropore nature of this catalyst limits the reaction because elainic acid molecules are too large to penetrate and access the internal pores of zeotype. The physicochemical properties of the synthesized catalysts were evaluated and comp...
Article
In this research, BiOBr(100-X)-NiO(X) (X=0, 5, 10, 20, 30 wt.%) heterojunctions were synthesized via precipitation method. The structural, optical and operational properties of samples were investigated by XRD, BET-BJH, FESEM, TEM, EDX, FTIR and DRS techniques. XRD analysis denoted successful synthesis of all samples consisting cubic and tetragonal...
Article
ZnO-GO-Fe3O4 as an effective magnetic nanocomposite in photodegradation of water pollutants is prepared via two step procedure and its photocatalytic activity for organic dyes degradation is investigated. The first step is sonoprecipitation synthesis of ZnO over graphene oxide nanosheet and the second step is addition of Fe3O4 nanoparticles by two...
Article
In this research a series of metal oxides (SrO, La2O3, CaO, MgO, and Li2O) were loaded over Mg-spinels via a hybrid combustion-impregnation method. Nanocatalysts were characterized by XRD, FESEM, TEM, EDX, BET-BJH, and FTIR analyses. The XRD results showed the formation of pure crystalline phases in all of the nanocatalysts. Among all the nanocatal...
Article
Three-step high temperature programmed hydrothermal preparation of ZSM-5 was investigated by using different crystallization times and temperatures. The synthesized nanostructured catalysts were analyzed by XRD, FESEM, EDX, BET-BJH, FTIR, TPD-NH3 and TGA techniques. According to the obtained characterization results, synthesis of ZSM-5(250-30,300-1...
Article
The present research was aimed to evaluate the contribution of fuel type and heating approach as the most significant parameters in the solution combustion synthesis method to provide the appropriate structure of the nanophotocatalyst with substantial properties and consequently, higher photo-degradation efficiency of dye pollutant under solar simu...
Article
In this research, Mg–Sn hydroxide (MgSn(OH)6) nano semiconductor was synthesized using three different routes to investigate the texture/structure of MgSn(OH)6 on the photocatalytic properties of MgSn(OH)6 in RhB degradation. The nano semiconductors were characterized using XRD, FE-SEM, TEM, EDX, BET-BJH, DRS, PL, and the pHpzc. Morphological analy...
Article
Novel p-n type BixOyIz/ZnFe2O4 nanoheterojunction was prepared in various solvents via two step solvothermal-precipitation route. The influence of solvent on physicochemical and optical properties of samples were investigated by FESEM, XRD, TEM, FTIR, EDX, pHpzc, BET and, UV-Vis DRS techniqus. The results indicate that differernt solvents lead to d...
Article
This study investigates shaping and characterization of fluidizable methanol to olefins catalysts using single-binder or dual-binder. Physicochemical and mechanical properties were investigated with different methods likewise FESEM, XRD, TGA, FTIR, TPD-NH3 and BET-BJH. Furthermore, MTO process tests were accomplished to investigate the catalytic ac...
Article
The magnetic flower-like NiO–CuFe2O4 p-p heterostructure nanophotocatalysts with various weight percentages of NiO were prepared to study the photodegradation of the different organic dyes under simulated sunlight illumination. To design these novel nanocomposites, co-precipitation, and ultrasound-assisted hydrothermal approaches were utilized. Dif...
Conference Paper
Full-text available
In this research, novel Cu-spinel/reduced graphene oxide nanocomposite was synthesized by sono-solvothermal method and used to remove various dyes. The properties of the synthesized photocatalysts were characterized by XRD and FESEM analyses. The photocatalytic results confirmed that the removal rate of methyl orange, eosin y, and methylene blue ov...
Article
Background Currently, water polluted to antibiotics such as ciprofloxacin (CIP) has been a main concern for the ecosystem and environment. Hence, the removal of these emerging contaminants is essential. Method In this research, a hybrid process including magnetic carbon nanomaterial/NiFe2O4 promoted atmospheric non-thermal dielectric barrier disch...
Article
The efficient 3D cheese like Mn-doped TiO2 catalyst was synthesized via Mn-catalyzed microwave-induced combustion for biodiesel production. The characterizations of Mn (0, 2, 4, and 6 at.%)-doped TiO2 were performed by XRD, FESEM, EDX, TEM, BET-BJH, and TPD-NH3 analyses. To compare the Mn (0 and 4 at.%)-doped TiO2 was also synthesized using muffle...
Article
The main objective of this study was to produce biodiesel from waste oil by bifunctional acid-base CeO2(x%)/ZnO nanocatalysts. CeO2 was loaded over mesoporous ZnO in different percentages (X = 5, 10, 20, 30 and 50) to reach the optimum acid-base balance, and remove the internal mass transfer resistance. Ultrasonication was adopted as an efficient a...
Article
AgBr0.75Cl0.25 solid solution on carbon defects-MWCNTs, modifying with DBD-plasma, was fabricated via the sono-precipitation method, employing to degrade dye pollutants under simulated sunlight. XRD, FTIR, Raman, BET-BJH, FESEM, TEM, DRS and PL analyses were applied to characterize the nanophotocatalyst. Results illustrated the improvement of band...
Article
In this research, the novel staggered AgX (Br, I)/CoCrNO3LDH (abbreviated as: p-AgX (Br, I)/CCNLDH) nanophotocatalysts with plasmonic and antibacterial properties, via the precipitation combined with the ultrasonic irradiance manner (abbreviated as: SP), were fabricated. Their function was evaluated to remove antibiotic contaminants in the simulate...
Article
Due to the large size of free fatty acid molecules, they cannot diffuse into into Al-Si-P Zeotype pores in the biofuel production process. Therefore, in the current work, to rectify this problem, in the synthesis of Al-Si-P zeotype by hydrothermal method, various weight percentages of the carbon casting and ultrasound waves for the uniform of the m...
Article
The novel (BiOCOOH)x(Bi2MoO6)1-x solid solution as nanophotocatalysts (0≤ x ≤1), with unique 3D, tremella-like architecture containing self-assembled leaf-like nanosheets have been synthesized through in situ ultrasound-induced solvothermal technique to photodegrade medication effluents under simulated sunlight irradiation. Besides, the efficacy of...
Article
Herein, we rationally designed and fabricated the visible-light-driven Cu(OH)2/Cu2O/C3N4 photocatalyst with stable and highly efficient novel all-solid Z-scheme photocatalytic performance. It was observed that selectively fabrication of Cu(OH)2 nanoclusters on the surface of Cu2O as well as the in-situ formation of elemental Cu at the interface of...
Article
Full-text available
The influence of ultrasound-assisted rapid hydrothermal synthesis of aluminosilicate ZSM-5 catalysts was examined in this work. A series of MFI-type nanostructured materials with sonochemical approach and conventional heating were synthesized and evaluated for conversion of methanol to propylene reaction. The prepared samples were tested by charact...
Conference Paper
Full-text available
New method of synthesizing pure SAPO-34 and FeAPSO-34 Zeolites via aluminium chloride is presented in the presence of aluminium chloride as Al source. The synthesized samples were characterized using XRD, FTIR, and FESEM analysis. XRD patterns showed Diethyl amine (DEA) template lead to production SAPO-34 phase, also, FeAPSO-34 catalyst showed high...
Article
In the current research, MgO/MFS nanocatalyst was used in the transesterification process to produce green fuel from vegetable oil. The effect of various synthesis methods such as precipitation, hydrothermal, conventional combustion, and microwave combustion on the magnesium ferrite nanostructure support was investigated. MgO active phase was then...
Article
In this research to enhance the photocatalytic activity of Bi24O31Br10, precipitation fabrication of the Z-scheme heterojunction with Ag-Ag2O has been investigated. The characterizations were carried out by XRD, FESEM, TEM, EDX, BET-BJH, DRS and pHpzc analyzes. The Ag-Ag2O/Bi24O31Br10 Z-scheme heterojunction nanophotocatalyst with weighted ratio of...
Conference Paper
Among various advanced axidation methods, semiconductor photocatalysis has proven to be an advantagous process for water treatment. Over the recent years, some efforts have been made for synthesis of different hydroxide nanostructures as nontoxic and highly active semiconductor photocatalysts. In the current research, magnesium hydroxystannate nano...
Article
In this study, photocatalytic elimination of colour effluent was evaluated by novel 3D flower-like AgCl-Bi4O5I2 microsphere type II nano-heterojunction semiconductors with surface plasmonic properties which were fabricated by sono-precipitation method. To investigate the influence of ultrasound irradiance and select the sample that could have the h...
Article
Aim and objective: Production of light olefins from methanol was studied over SAPO-34 molecular sieves exploring the effect of mono and dual templates. Herein, the single templates of TEA, morpholine and mixed template of TEA/morpholine (equal molar ratio of TEA and morpholine) were used to synthesize SAPO-34 catalysts. Materials and methods: Th...
Article
Aim and Objective Effect of two different modification methods for introducing Ni into ZSM-5 framework was investigated under high temperature synthesis conditions. The nickel successfully introduced into the MFI structures at different crystallization conditions to enhance the physicochemical properties and catalytic performance. Materials and Me...
Article
Full-text available
In this study, sulfated zirconia on MCM-41 prepared through a new ultrasound-assisted sulfation method for biodiesel production from waste cooking oil. The effect of different sonication times (15, 30 and 45 min) on nanocatalyst properties were studied using BET, EDX, FESEM, NH3-TPD, FTIR and XRD analyses. The XRD patterns along with the results of...
Article
In this paper, with the aim of using the solar light as an unlimited and clean source of energy, novel magnetic MgAl2O4-AC nanophotocatalysts with different mass percentages of activated carbon were synthesized for water purification applications. In order to synthesize the magnetic MgAl2O4-AC nanophotocatalysts, three different methods of combusti...
Article
In this article, MgO/Ca2Mn3O8 nanocatalyst was used for the first time in the transesterification process for the production of green fuel from sunflower oil. Besides, the synthesis of layered nanostructured Ca2Mn3O8 was done for first applied by combustion route as well. The effects of two heating sources including muffle furnace and microwave irr...
Article
In this research, a group of BiOX (Cl:Br) nanosheet solid solution with various Cl/Br molar ratios have been fabricated using a facile one-pot in-situ thermal-sonication method. The crystal phases structure, elemental composition, morphology, specific surface area and optical features of as-synthesized photocatalyst were explored by XRD, EDX, FESEM...
Article
Full-text available
In this study, the microwave-assisted solution combustion method was utilized for the fabrication of Ca12Al14O33 as support and the amount of urea was assessed as an important parameter during synthesis of the sample. Synthesized Ca12Al14O33 with different fuel amounts was impregnated by KOH and used in the biodiesel production process with canola...
Article
The reported research can be related to the investigation of MTO catalysts prepared via spray drying method and the corresponding catalytic evaluation with the aim of improving SAPO-34 catalyst strength and reduce its abrasion. Slurry composition and calcination temperature effect on the production of fluidizable microencapsulated catalysts was tak...
Article
The urea-nitrate combustion and homogeneous precipitation methods have been comparatively examined for the preparation of CuO/CeO2/ZrO2/Al2O3 catalysts. Their physicochemical properties, as well as their hydrogen production ability via the steam reforming of methanol, have been studied. Prepared catalysts were characterized using XRD, FESEM, EDX, B...
Article
BACKGROUND In assembly of nanoparticles onto zeolites, the surface design of nanoparticles has great influences on various catalytic properties. Herein, ZSM‐5 was hydrothermally synthesized and its external surface was decorated by MnO NPs in two different surface designs, distributed MnO NPs and MnO shell. RESULTS The synthesized MnO‐decorated sa...
Article
Bifunctional acid/base nanocatalysts was fabricated with several secondary hard-templated ZSM-5 supports to produce biodiesel. Carbon active, charcoal, graphite and multi-wall carbon nanotube were carbonaceous sources used as template. Furthermore, ultrasound was utilized to increase dispersion of the carbon particles. The nanocatalysts were charac...
Article
Super-porous plasmon-induced Cu-doped ZnO-CuO photocatalysts were synthesized via facile combustion method at various fuel/nitrate ratios. The samples were characterized by XRD, FESEM, PDS, TGA, FTIR, DRS, PL, EDX and BET-BJH. The photocatalytic performance of the samples was investigated in degradation of methylene. The results showed that an incr...
Article
In this research, the SAPO-34 nanocatalyst has been improved in order to produce biodiesel as a green fuel. According to large molecules of free fatty acids (FFAs) and difficulty in the diffusion of these molecules through small pores of SAPO-34, the active charcoal secondary template was used to create meso and macro pores. Also, in order to incre...
Article
In this research, BimOnBrz nanophotocatalysts were fabricated using various fuels such as ethylene glycol, propylene glycol and glycerol to investigate the effect of fuel types on the photocatalytic activity and structure. Moreover, the influence of conventional and microwave combustion was investigated. Results of XRD, EDX, BET-BJH, FESEM, TEM and...
Article
In this research, MgO/MgFe2O4 heterogeneous magnetic nanocatalyst was used in biodiesel production and to study its structural and morphological characteristics, various methods have been used in MgO addition on the support. Impregnation, Precipitation, Precipitation – Hydrothermal, Precipitation – Ultrasonic and Combustion methods were utilized to...
Article
In present work, the catalytic properties of MCM-41 were boosted by introducing Zr into its structure with various amounts of Si/Zr molar ratios. Then it was loaded by calcium through conventional impregnation and sono-dispersion. Synthesized nanocatalysts were analysed using EDX, XRD, FTIR, FESEM and BET-BJH techniques. The results of XRD techniqu...
Article
To solve the challenges of diffusion of large molecules of oil into the SAPO-34 pores, secondary carbon and polymeric templates are used in sonohydrothermal synthesis method. Structure of the catalysts was estimated by BET, XRD, TPD, EDX, FESEM, HRTEM, and FTIR analyses. The best pore distribution was obtained for the catalyst synthesized by charco...
Article
Herein, the degradation of fluoroquinolones was investigated. In this regard, 3D-flower-like BiOCl/BiOBr–Bi24O31Br10 type-II nanoheterojunction was fabricated using sono-assisted solvothermal and introduced as an effectual sunlight-activated photocatalyst for the removal of pharmaceuticals from effluents and polluted surface water. To evaluate the...
Article
In this research, Bi7O9I3-ZnO nanocomposite was designed via facile sono-dispersion route and influence of ultrasound power (P = 0, 100, 200, 300) was investigated. Synthesized photocatalysts were utilized for deterioration of methylene blue in water under solar light irradiation. XRD, FESEM, EDX, BET-BJH, FTIR, DRS, PL and UV–Vis were utilized to...
Article
Hydrothermal, gel oxalate precipitation and non-thermal glow discharge plasma synthesis methods are used for preparation of CuO/ZnO/Al2O3 mixed oxide catalysts. The XRD analysis reveals that the lowest relative crystallinity and crystallite size of different crystallite facets are obtained for CZA-OG-P sample which has been synthesized via hybrid g...
Article
A series of Cu(OH)2/g-C3N4 photocatalysts were fabricated via precipitation and sonoprecipitation. Various physicochemical and electrochemical techniques were employed to investigate the physical and optical properties of the samples, while their photocatalytic performance was studied based on the water splitting. Based on the observations, Cu(OH)2...
Conference Paper
Full-text available
In this study, microwave-assisted solution combustion method was utilized for fabrication of Mayenite (Ca 12 Al 14 O 33) as support and the amount of urea as important parameter during synthesis of the sample was assessed. Then the supports werre impregnated by KOH and used in the biodiesel production process from canola oil under microwave irradia...
Article
The mesoporous Ag/Bi2Sn2O7-C3N4 plasmonic nanophotocatalyst, which synthesized by the hybridization method of sono-dispersion and heat-treatment following with the sonophotodeposition, was applied as an efficient solar-light-driven photocatalyst for degradation of Tetracycline (TC) antibiotic. Also, the Bi2Sn2O7, g-C3N4, Bi2Sn2O7-C3N4, Ag/Bi2Sn2O7...
Article
Different crystallization times were studied during hydrothermally synthesis of ZSM-5 framework at moderate temperature to investigate the physicochemical properties and MTO catalytic behavior. The ZSM-5 samples were synthesized at moderate temperature (250 °C) and different crystallization times (24, 18, 12, 6, and 3 h). The synthesized samples we...
Article
In this study, in order to scrutiny the effect of adding Silica Aerogel to the BiOI for evaluation of photocatalytic performance, BiOI-Silica Aerogel with different percentages of Silica Aerogel (10, 20 and 30%) was synthesized by Sono-solvothermal method. In order to determine the physical, chemical and optical characteristics of synthesized photo...
Article
Full-text available
Ag/C3N4-Clinoptilolite nano-photocatalyst with a high activity was synthesized by ultrasound energy and employed in the photocatalytic removal of the tetracycline from aqueous solutions. XRD, FESEM, EDX, BET and FTIR analyses revealed that C3N4-Clinoptilolite was successfully synthesized with efficient dispersion of Ag nanoparticles. DRS analysis i...