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D. Amaranatha Reddy

D. Amaranatha Reddy
Indian Institute of Information Technology Design and Manufacturing, Kurnool · Department of Sciences

M.Sc, Ph.D

About

125
Publications
27,464
Reads
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4,441
Citations
Citations since 2017
61 Research Items
3903 Citations
20172018201920202021202220230200400600
20172018201920202021202220230200400600
20172018201920202021202220230200400600
20172018201920202021202220230200400600
Additional affiliations
March 2014 - present
Pusan National University
Position
  • PostDoc Position
April 2013 - February 2014
Hankuk University of Foreign Studies
Position
  • PostDoc Position
March 2009 - March 2013
Sri Venkateswara University
Position
  • Research Associate

Publications

Publications (125)
Article
Bismuth vanadate (BiVO4, BVO) as a promising photoelectrode has been received great attention for photoelectrochemical (PEC) water splitting. However, the slow oxidation kinetics on the surface of BiVO4 limited the PEC water splitting efficiency. Herein, nickel boride (Ni3B, NB) nanoparticles, generally used in electrocatalytic field material, were...
Article
This paper aimed to create visible light driven ternary photocatalysts using zinc oxide (ZnO), cerium (IV) oxide (CeO2), and carbon xerogel (CX) as constituent materials. The use of CeO2 is based on the creation of direct-Z-scheme heterojunctions with the ZnO and the consequent diminishing of charge recombination, whereas the carbon xerogel inclusi...
Article
Full-text available
Improving the reversible capacity, fast chargeability, and cyclability of cathode materials are the primary challenges in the development of advanced rechargeable batteries. Herein, we discover the synergetic effects of cobalt ions in achieving a capacity that is approximately equivalent to the theoretical capacity, a highly stable cyclability, and...
Article
Two-dimensional transition metal dichalcogenides (TMDs) with layered nanostructures show promise as non-precious, noble-metal-free water splitting/hydrogen evolution substances. In TMDs, catalytic activity depends on exposed edges because basal planes are inactive. Changing basal planes into catalytically active sites is a challenge. Doping MoS2 wi...
Article
Full-text available
Considering the ever-increasing need for efficient wastewater treatment, this study focused on the development of new kraft lignin-based carbon xerogel/zinc oxide (XCL/ZnO w) photocatalysts. The inclusion of the carbon xerogel is expected to cause an improvement in charge transfer throughout the photoactivation process, consequently enhancing its o...
Article
The molybdenum sulfide (MoS2) is a promising low-cost photocatalyst aimed at the hydrogen production reactions, however, obtaining a detailed understanding of its catalytic site has proved to be a challenging task. Several studies indicated that the active sites for catalytic reaction are mainly associated with the edge sites of 2D-layered MoS2, an...
Article
The utilization of non-precious and noble-metal free catalysts for the photo conversion of water into hydrogen is of significant interest. In particular, the typical layered MoS2 has attracted interest as a low-cost alternative to platinum in the photocatalytic hydrogen evolution system. However, theoretical studies have suggested that the activity...
Article
Development of low cost, highly efficient and non-noble metal photosystem is of a great significance for promoting the photoproduced carrier’s separation and acting as CO2 reduction sites. Herein, non-noble metal catalysts of TiO2 nanotubes (TNT) and hexagonal ZnIn2S4 nanosheets (ZIS) have been synthesized by simple hydrothermal methods and used fo...
Article
Two-dimensional (2D) graphitic carbon nitride (g-C 3 N 4) has invoked significant interest for photo-catalytic applications for its excellent features such as high surface area, visible light absorption, and easy transportation of photogenerated charge carriers, but the most reported g-C 3 N 4 show relatively low photoactivity due to inferior condu...
Article
Efficient copper phthalocyanine gas sensors capable of sensitive and selective analysis of toxic gases at room temperature have shown their great potential for gas sensing in recent years. In this work, a gas sensor based on phthalocyanine copper (II) (CuPc) was prepared by a one-step low-temperature physical vapor deposition (PVD) method. The unif...
Article
A ternary metal oxide CuBi 2 O 4 has received immense attention in the research field of photoelectrochemical(PEC) for water or CO 2 reduction owing to its ideal optical bandgap and positive photocurrent onset...
Article
Full-text available
Photocatalytic CO 2 reduction to carbon fuels is desirable solutions to replace conventional fossil fuels. Herein, SnS 2 nanosheets (NSs) were fabricated via facile hydrothermal method, which transformed to thinner and more...
Article
NiFe -layered double hydroxides (LDH) are fast, responsive oxygen evolution co-catalysts (OECs) for photoelectrochemical (PEC) water splitting due to their extraordinary photo charge carrier transport properties, easy modulation of defect states, and low preparation cost. However, in NiFe-LDH, major catalytic active sites are situated at the edge s...
Article
The integration of photosensitizers with low-cost and non-toxic metal oxides is a promising strategy to design heterogeneous photocatalysts for CO2 reduction. Herein, p–n heterojunction photocatalysts (T-CoPPcs) consisting of p-type polymeric cobalt phthalocyanines (CoPPcs) as a photosensitizer coupled with n-type TiO2 nanorods were fabricated thro...
Article
The selection of layered number and time-course destruction of layers may affect the charge transfer between 2D-to-1D heterostructure, making it possible to improve the efficiency of solar-to-hydrogen evolution. Herein, we demonstrate a simple, low-cost systematic protocol of 2D-WSe2 nanolayer numbers ranging from 7 to 60 aiding the ultrasonication...
Article
Two-dimensional (2D) organic semiconductors, such as graphitic carbon nitride (g-C3N4), have gained extensive attention as a green alternative and possible route for photocatalytic applications due to their appropriate bandgap for the effective utilization of the visible light region. This paper presents the development of few-layered 2D exfoliated...
Article
Full-text available
Hierarchical 1-D CdS nanorods adorned with MoS2-SnS2 nanocomposites were developed by a simple solvothermal method at nano-regime. In the present work, we noticed a tremendous enhancement in H2 evolution by loading MoS2-SnS2 nanostructures on 1D-CdS nanorods under the solar light irradiation. Notably, for the CdS/MoS2-SnS2 (6 wt%) nanocomposites, t...
Article
Design and development of inexpensive novel nanostructures is a notable pathway to enhance photocatalytic hydrogen evolution to subsidize the future energy demand. For the first time, we are reporting on the MoS2-SeS2 dual co-catalysts decorated CdS nanorods for efficient photocatalytic water splitting hydrogen production under the simulated sunlig...
Article
Clean and sustainable hydrogen fuel production through photocatalytic water splitting is an ideal strategy to achieve a higher grade of sustainability. Metal–organic frameworks (MOFs) based photocatalysts have recently attracted significant attention as a new type of photocatalysts owing to their excellent light harvesting capability and remarkable...
Article
Full-text available
The conversion of anthropogenic CO2 to value-added chemicals through solar-driven catalysis has been proposed as a promising approach to overcome the problems associated with high CO2 emissions and to address the energy crisis. Although a variety of materials have been investigated for catalysts in the production of high-energy fuels from CO2 in wa...
Article
The performance of oxide photoanodes constructed with hematite (Fe2O3) nanostructures is among the best for low-cost photoelectrochemical water-splitting cells. However, due to limited light absorption capacity, a high photogenerated charge carrier recombination rate, and sluggish surface oxygen evolution reaction (OER) kinetic on the surface, the...
Article
Full-text available
Superstructures with hollow cage‐like hierarchical ordering play a predominant role in various applications owing to their unique properties, such as low density, an interior void, a high surface‐to‐volume ratio, and excellent permeability for charge and mass transport. Low‐cost hollow cage‐like copper sulfide superstructures are competitive candid...
Cover Page
The Cover Feature shows the integration of indium phosphide (InP) quantum dots on CdS nanorods (NRs) for the photocatalytic CO2 conversion under solar light irradiation. In their Full Paper, K. H. Do, D. P. Kumar et al. explain the simple and inexpensive process for the preparations of pure InP QDs and demonstrate the enhanced sunlight‐driven photo...
Article
Full-text available
Photocatalytic conversion of CO2 into storable fuels is an attractive way to simultaneously address worldwide energy demands and environmental problems. Indium phosphide (InP) quantum dots are semiconducting QDs with enormous potential for solar‐driven CO2 reduction. Their advantages include a tunable bandgap, diverse surface chemistry, and nontoxi...
Article
Full-text available
Development of earth-abundant, low cost, skeletal-type copper sulfide superstructures plays a prominent role in various potential applications, owing to the properties of superstructures such as excellent permeability of charge and mass. In this study, we synthesized the hollow superstructures of crystallinity-controlled polyhedral skeletal-type co...
Article
Photoelectrochemical (PEC) water-splitting performance can be expressed as the product of efficiencies of light absorption (ηabs), charge separation (ηsep) and charge transfer (ηtrans) processes. In BiVO4 photoanodes, the ηtrans has been greatly enhanced by integrating various low-price oxygen evolution electrocatalysts but improving ηabs×ηsep effi...
Article
Design and development of novel highly efficient diluted magnetic semiconductors for spintronic devices and photocatalytic application is of great importance. In this regard, we report on the synthesis and analysis of new class of highly efficient pure CeO2, Ce0.42Fe0.04Co0.04O50, Ce0.42Co0.04Ni0.04O50 and Ce0.38Fe0.04Co0.04Ni0.04O50 nanoparticles....
Article
Full-text available
The creation of diluted magnetic semiconductors (DMSs) at lower dimensions that exhibit room temperature ferromagnetism (RTFM) has been given immense significance for the fabrication of a new class of spintronic devices through utilizing spin degrees of freedom besides charge nature of electrons. In this view, nanocrystals of ZnS doped with 4% conc...
Article
Photocatalytic water splitting by semiconductor nanostructures is a challenging chemical process for harnessing abundant solar energy and obtaining clean H2 fuel. To that end, photocatalysts that comprise efficient light-harvesting semiconductor nanostructures and noble metal-free robust co-catalysts have attracted considerable attention. In this s...
Article
Ni3Se2 and Co-doped Ni3Se2 cauliflower-like nanostructures are synthesized using a simple and feasible electrochemical deposition technique. Electrochemical measurements of the resultant nanostructures in 1 M KOH electrolyte solution revealed that the energy storage performance of the cauliflower-like Ni3Se2 nanostructures was considerably improved...
Article
2D-MoS2 nanostructures are attractive co-catalysts for photocatalytic hydrogen evolution due to their suitable water reduction potentials and high stability. However, the catalytic activity of MoS2 is greatly limited by the catalytically inert basal planes. Doping of transition-metal ions into MoS2 structure is an effective way to activating the ba...
Article
Full-text available
Photocatalytic H2 generation through water splitting using heterogeneous semiconductor nanostructures under the beneath of sunlight is a significant route for alternation of renewable energy. In this perception we fabricated novel hierarchical CdS/MoS2-CoSe2 nanostructures via facile solvothermal route combined with ultra-sonication technique. Opti...
Article
Solar-driven semiconductor-based molecular hydrogen production is an ideal protocol for converting abundant solar energy to green fuel. However, this process suffers from costly semiconductor nanostructures, low efficiency, and poor stability. Here, we design a noble-metal-free photocatalyst, CdS-NiFe layered double hydroxide (LDH) nanocomposite, w...
Article
Exploring active and stable photocatalysts is an essential requirement for boosting the efficiency of photocatalytic water splitting to obtain clean hydrogen fuel. Here, a few layered black phosphorus/MoS2 (BP-MoS2) nanohybrid was successfully prepared and verified it for photocatalytic hydrogen evolution using CdS nanorods as light absorbers. The...
Article
Development of novel low price porous nanostructures with robust photocatalytic hydrogen generation rate and high durability is critical to help to meet the future energy demand. A prominent number of sunlight active semiconductor photocatalyst nanostructures have been formulated for the aforementioned photocatalytic reactions. However, their pract...
Article
EDTA surfactant assisted bare and Cu doped CdS nanoparticles were prepared by simple chemical coprecipitation method. As the prepared samples were characterized by energy dispersive analysis of X-rays (EDAX), X-ray diffraction patterns (XRD), transmission electron microscopy (TEM), Raman spectroscopy and photoluminescence spectroscopy (PL). Existen...
Article
Full-text available
Nowadays, oxide-based diluted magnetic semiconductor nanoparticles are the most reliable compounds, wherein they accommodate both spin as well as charge of the electron in single domain, means most preferable for the fabrication of spintronic devices. In this view, we report on new Ce1−xNixO2 (x = 0.00, 0.02, 0.04, 0.06, and 0.08) nanoparticles pre...
Article
Carbon nanotubes (CNTs) have enormous potential for application due to their extreme hydrophobicity. Further, their physico-chemical properties can be modified by surface functionalization. Acid functionalization of CNTs is one of the basic methodology for modification of their electro-chemical properties, resolving the poor dispersion capability,...
Article
Full-text available
In the era of modern technology, the development of spintronic devices using diluted magnetic semiconductor nanoparticles has drawn significant attention from the world researchers. In this work, we report on novel Cu1−xMnxS (x = 0.00, 0.01, 0.03 and 0.05) compounds synthesized at room temperature through a simple precipitation method via EDTA as a...
Article
The hollow materials have played a significant role in cutting-edge innovations for energy conversion due to their peculiar properties and their wide range of potential applications. These materials show great promise for the development of cleaner power sources to address growing environmental concerns at a time of increasing global demand for ene...
Article
Transition metal oxides (TMOs) have attracted attentions because they provide eco-friendly ways of collecting solar energy and are more stable than sulfides or phosphides for photoirradiation over long periods without photocorrosion. Among TMOs, tungsten oxides have attracted considerable attention owing to their excellent electron transport proper...
Article
Designing porous nanostructures with unprecedented functions and an effective ability to harvest the maximum energy region of the solar spectrum and suppress the charge-carrier recombination rate is offering promising potential for sustainable energy production. Herein, we report a new, highly active, noble-metal-free, and redox-mediator-free Z-sch...
Article
The development of efficient, cost-effective, clean, and renewable ways to generate hydrogen is crucial to fulfill energy demand and relieve environmental concerns. The layered nanostructures of two-dimensional transition metal dichalcogenides (TMDs) are promising non-precious, noble-metal-free materials for use as hydrogen evolution reaction photo...
Article
The development of novel highly efficient noble metal-free co-catalysts for enhanced photocatalytic hydrogen production is of great importance. Herein, we report the synthesis of novel and highly efficient noble metal-free ultra-thin MoS2 (UM) layers of exfoliated reduced graphene oxide (ERGO) nanosheets as a cocatalyst for CdS nanorods (ERGO/UM/Cd...
Article
Transition-metal dichalcogenides (TMD) have emerged as a fascinating new class of noble-metal-free materials for photocatalytic hydrogen evolution from the water. Recently, numerous approaches have been established to develop single- or few-layered TMDs to improve their physical properties. Although WS2 has a higher intrinsic electric conductivity...
Article
Semiconductor-based photocatalysis is a green method for the removal of toxic organic pollutants by decomposition into harmless products. However, traditional single-component semiconductors are unable to reach high degradation efficiencies due to excessive photo charge carrier’s recombination. Hybrid nanocomposite photocatalysts are a promising st...
Article
We demonstrate a simple and effective approach to modulate the active sites and electronic properties of MoS2 using hydrazine assisted liquid exfoliation for enhancing its co-catalytic activity in photocatalytic hydrogen evolution. The resulting hydrazine assisted liquid exfoliation formation of ultrathin MoS2 (HUT-MoS2) nanosheets integrated on Cd...
Article
Solar-driven photocatalytic hydrogen evolution is important for bringing solar energy-to-fuel energy conversion process to reality. However, the lack of highly efficient, stable, and non-precious photocatalysts or catalysts designed completely with expensive noble metals have remained elusive, which hampers their large-scale industrial application....
Article
In this paper, we report systematic investigations on the effects of Ni doping on the structural, optical, magnetic and photocatalytic characteristics of CuS nanoparticles synthesized by simplistic wet chemical co-precipitation route via EDTA molecules as templates. XRD studies confirmed that accurate phase formation of synthesized nanoparticles an...
Article
Ultra-dispersed bimetallic nanomaterials have attracted much attention in the hydrogenation of highly toxic aromatic nitro compounds to aromatic amines owing to their high stability, superior activity, reusability, and unique optical and electronic properties, as compared to monometalic nanocrystals. However, the lack of facile and economically con...
Article
Photocatalytic hydrogen evolution reaction using semiconductor nanostructures has received considerable attention to tackle energy and pollution problems. Although several semiconductor photocatalysts have been developed, materials satisfactory in all aspects (e.g., economically and eco-friendly with high efficiency) are still to be developed. Here...
Article
Cerium-based nanohybrids have attracted considerable attention in photocatalytic research owing to their remarkable potential in the photodegradation of environmental pollutants. However, the process of nanohybrid formation suffers from complex operations with specialized equipment, extreme conditions, long durations, and low yields, making it infe...
Article
The present work is planned for a simple, inexpensive, efficient approach for synthesizing of Cu1-xFexS (x = 0.00, 0.01, 0.03, 0.05 and 0.07) nanoparticles via simplistic chemical co-precipitation route by using ethylene diamine tetra acetic acid (EDTA) as a capping molecules. As synthesized nanoparticles was used as competent catalysts for degrada...
Article
The inferior utilization efficiency of light is the main obstacle to the practical application of traditional photocatalysts such as TiO2 and ZnO. In this regard, the development of novel photocatalysts with the capability of harvesting full spectrum light (from ultraviolet (UV) to near-infrared (NIR)) energy is a promising solution for solar energ...
Article
Development of noble metal free, novel and highly efficient cocatalysts is of great significance in favor of high performance towards elevated photocatalytic hydrogen production. The present existing technology for photocatalytic water splitting primarily involves the use of noble metals, such as Pt, as cocatalysts on semiconductor materials result...
Article
Charge carrier recombination and durability issues are major problems in photocatalytic hydrogen (H2) evolution processes. Thus, there is a very important necessitate to extend an efficient photocatalyst to control charge-carrier dynamics in the photocatalytic system. We have developed copper molybdenum sulfide (Cu2MoS4) nanosheets as co-catalysts...
Article
Abstract: Magnetic core-shell ZnFe2O4/ZnS composites were synthesized through a two-step chemical process including the hydrothermal and the co-precipitation methods. The structural characterization revealed that the composites consisted of a layer of ZnS clusters on the surface of ZnFe2O4 nanoparticles. The band gap energy of the composite was est...
Article
Facile preparation of metal–organic framework (MOF)-derived earth-abundant nickel phosphide (Ni2P) by a simple, cost-effective procedure is described. Ni2P is recognized as a suitable replacement for expensive noble metal co-catalysts used for H2 production by water splitting. Ni2P nanoparticles were used to prepare a Ni2P/CdS composite with improv...
Article
Solar photocatalytic water treatment has emerged as a promising way to provide clean water. However, most traditional photocatalysts (TiO2, ZnO, etc.) are active only under ultraviolet light and have high recombination rates of photoinduced electron-hole pairs; therefore, they are not sufficient to fulfill all of the demands of practical applicatio...
Article
Cerium-based nanohybrids have attracted considerable attention in photocatalytic research owing to their remarkable potential in the photodegradation of environmental pollutants. However, the process of nanohybrid formation suffers from complex operations with specialized equipment, extreme conditions, long durations, and low yields, making it infe...
Article
Cerium-based nanohybrids have attracted considerable attention in photocatalytic research owing to their remarkable potential in the photodegradation of environmental pollutants. However, the process of nanohybrid formation suffers from complex operations with specialized equipment, extreme conditions, long durations, and low yields, making it infe...
Article
An oxygen-vacancy rich, bismuth oxyiodide-based Z-scheme 3D hierarchical MoS2/BiOI/AgI ternary nanocomposite photocatalyst was fabricated by a simple precipitation process in ethylene glycol and water as solvents. The presence of oxygen-vacancy rich in BiOI and two-dimensional nature of molybdenum disulfides in the composite prolongs charge carrier...
Article
An oxygen-vacancy rich, bismuth oxyiodide-based Z-scheme 3D hierarchical MoS2/BiOI/AgI ternary nanocomposite photocatalyst was fabricated using a simple precipitation process in ethylene glycol and water. The presence of oxygen-vacancies in BiOI and the two-dimensional nature of molybdenum disulfides in the composite prolongs the charge carrier lif...
Article
An oxygen-vacancy rich, bismuth oxyiodide-based Z-scheme 3D hierarchical MoS2/BiOI/AgI ternary nanocomposite photocatalyst was fabricated using a simple precipitation process in ethylene glycol and water. The presence of oxygen-vacancies in BiOI and the two-dimensional nature of molybdenum disulfides in the composite prolongs the charge carrier lif...
Article
Non‐precioustransition metal phosphides(TMPs) are emerging asthe most promising substitutesfor expensive noble metal‐based co‐catalysts for the hydrogen evolution reaction. While the synthesis of TMPs is well established, it is extremely challenging to design porous multicomponent transition metal phosphides (MCTMPs) to overcome the drawbacks of TM...
Article
Non-precious transition metal phosphides (TMPs) are emerging as the most promising substitutes for expensive noble metal-based co-catalysts for the hydrogen evolution reaction. While the synthesis of TMPs is well established, it is extremely challenging to design porous multicomponent transition metal phosphides (MCTMPs) to overcome the drawbacks o...
Article
Reduced graphene oxide aerogels (RGAs) are excellent candidates for water remediation due to their lightweight, high surface area and high absorbance rate. Here, we report a simple green synthetic approach for the self-assembly of CeO2-RGA aerogels using vitamin-C as the reducing agent. The photocatalytic degradation performance of the as-synthesiz...
Article
Novel heterostructured Ag@AgI/ZnS microspheres were fabricated through a soft chemical route using polyvinylpyrrolidone (PVP). Their formation was confirmed by SEM, TEM, XRD, XPS, and FTIR analyses, which revealed that the Ag@AgI/ZnS nanocomposites comprised Ag, AgI, and ZnS nanoparticles. Luminescence quenching in the Ag@AgI/ZnS nanocomposites ind...
Article
Non-precious transition metal phosphides (TMPs) are emerging as the most promising substitutes for expensive noble metal-based co-catalysts for the hydrogen evolution reaction. While the synthesis of TMPs is well established, it is extremely challenging to design porous multicomponent transition metal phosphides (MCTMPs) to overcome the drawbacks o...