Muhammad Hasanuzzaman

• Doctor of Philosophy
• Professor (Associate) at Bangladesh University of Engineering and Technology

This study investigates the impact of pH and ageing time on silica xerogel pore characteristics prepared via the sol-gel method. Using tetraethyl orthosilicate (TEOS) and HCl as a precursor and acid catalyst, respectively, tailored pore size distributions in the meso-and macroporous range were achieved. Field emission scanning electron microscopy (...

This study aimed to enhance the visible light photosensitivity of TiO2 nanoparticles for self‐cleaning applications by doping with Fe³⁺. Nanocrystalline undoped and Fe‐doped TiO2 (Ti1 − xFexO2, x = .01–.04) were synthesized via sol–gel method. The results demonstrated that Fe‐doped TiO2 nanoparticles exhibited visible light sensitivity and self‐cle...

Clay is an essential industrial mineral that often needs improvement for particular applications. Due to the huge demand in the ceramic industry, nanostructure clay materials can be modified to be used as advanced materials such as porous filtration, heat resistance insulators, and other applications. The excellent alternating layered crystal sheet...

Nanoparticles, considered building blocks of nanotechnology, are a topic of widespread research due to their extraordinary properties that are useful in diverse sectors. Among all nanoparticle types, TiO2 (anatase) has drawn the most attention, primarily because of its superhydrophilic properties and effective antibacterial actions. Its application...

The harmful effect of Pb on both environment and public health is a well-established phenomenon. Therefore, Pb-free solder composites (SndAgdCu, SndAg, SndBi, etc.) have been developed and used over the years. However, Pb-free solder composites have many limitations such as poor electrical conductivity, low thermal conductivity, high relative densi...

Carbon nanotube-reinforced aluminum matrix composites (Al-CNTs) can be regarded as a potential candidate in automobile and aerospace applications because of their high specific strength coupled with low density. The development of Al-CNT composites has been a continuous process and got momentum in the last two decades. Researchers have tried differ...

Pin‐holing is one of the major glazing defects that the tableware ceramic industry is experiencing. It is evident from this research work that the pin‐holing defect can be prevented or at least reduced by optimizing composition and sintering profile, which in turn yields pin‐hole‐free tableware ceramics. DSC/TGA and dilatometer are found to be effe...

In this follow up of our previous work on bio-inspired photonics [Opt. Express 28, 25007 (2020)10.1364/OE.399505], we present a detailed comparison between the absorption characteristics of hexagonal and square lattice oriented bi-layered photonic structures designed based on the morphology of Coscinodiscus diatom. It is well established that singl...

Alumina-based ceramics are widely used for making wear-resistant components and machine parts due to their high hardness, strength, wear-resistance, and high chemical and thermal stability. However, low fracture toughness (K IC ~ 3.0 MPa.m 1/2) inhibits alu-mina's usage where high toughness is a prerequisite (e.g. ceramic engines). In this work, yt...

Since the first inception by Sony Co. in the year 1991, the Li-ion battery system is widely used in electronic devices, static energy depository systems, and electric vehicles (EVs) because of its high energy density compared to that of the existing systems, i.e., Lead-Acid, NiCd, NiMH. Due to the advent of new applications based on Li-ion battery...

Lead-free solder alloys have become popular and largely adopted as an alternative to lead-based solder alloys in the soldering of electronic components and electronic packaging. Ever since the legislation on end-of-life disposal and the European Union׳s (EU) Restriction of Hazardous Substances (RoHS) directive has led to the elimination of lead-bas...

Li2FeSiO4 has drawn attention recently as a cathode material due to its convincing features like the optimal working voltage, low toxicity, high theoretical capacity, high security, environmental friendliness, high elemental abundance, and low cost. However, this olivine structured Li2FeSiO4 may cause low electronic conductivity and lithium-ion dif...

Domestic and international terror threats have become a growing concern in parallel with the development of advanced technology. Military and security forces worldwide also equipped themselves with high-strength protective armors to protect them from those threats. Body armor shields an individual from sudden impact energy. To secure better protect...

Graphene Doped Oxide-Tin Oxide (GO-SnO2) nanocomposite is very propitious to overcome limitations for photocatalytic application. The GO-SnO2 (1:10) nanocomposite shows an efficient photodegradation (~94%) for model organic dye, Methyl Orange (MO) after 180 minutes. GO-SnO2 shows excellent stability with negligible loss in photocatalytic ability af...

A durable, high-performance concrete is important for sustainable construction. Organic admixtures, a fair contender against its traditional chemical counterpart, is being explored in response to the renewed interest in the production of green concrete. In this study, two types of starch, i.e., laboratory starch and arrowroot, were used as admixtur...

In pursuit of an alternative renewable and sustainable energy source to fossil fuels, polymer based photovoltaics has attracted considerable interests among researchers because of their lightweight, low cost and flexibility compared to the inorganic counterparts. The concept of bulk heterojunction (BHJ) device structure by blending both acceptor an...

Nanoscale materials have been receiving a great deal of attention in recent times for their extraordinary properties. They can be utilized in various areas including self-cleaning materials, cosmetics, textiles, electronics, and healthcare with remarkable results. This book article aims to provide a general understanding of nanoscale materials for...

The aim of this work is to study the behavior of cobalt ferrite nanoparticles during sintering. The size of prepared nanoparticles was in the range between 5 and 25 nm. The density of nanoparticles was measured using a Pycnometer and found to be 4.93 g cc⁻¹. The nanoparticles were uniaxially pressed into disk samples, and sintered under a single, c...

The world is flourishing with astounding economic development. But, at the same time it is experiencing an irretrievable ecological indemnity. Recently plastic pollution is being pointed out as a global quandary at every staircase, starting from plastic production to incineration. Biodegradable polymer is the ultimate solution to dumping problems g...

Inspired by the morphology of Coscinodiscus species diatom, bi-layered photonic structures comprised of dielectric-filled nano-holes of varying diameters have been designed and analyzed to enhance and tune absorption characteristics of GaAs-based thin-film photonic devices. Finite difference time domain-based numerical analysis and effective medium...

A good number of infrastructure projects are implemented in Bangladesh during the last decade and many more are still in pipeline. In the financial year 2017-18 approximately 12.7 million tons of aggregate are used by the construction industries. Local sources could supply only 11% of those aggregate and rest 89% are collected from foreign sources....

The quest for efficient utilization of renewable energy and development of sustainable, green energy sources have gathered enormous interest among the researchers since last decade. Solar and fuel cells provide a key solution to conversion and storage of energy. In this review, we revisited the potential of porous Si (PSi) and Dye Sensitized Solar...

Pin-holing, one of the major glazing defects, that tableware ceramic industry in Bangladesh is experiencing. Raw material composition and air trapped between the particles of powdered glaze are the main causes for this glaze relevant defect. A combination of test methods has been developed to characterize and relate body and glaze raw materials for...

Alumina (Al2O3) based ceramics are widely used for making machine parts, high-temperature components, wear-resistant material and biological ceramic due to their high hardness, strength, wear-resistance, and chemical and thermal stability. However, low fracture toughness (KIC∼3.0 MPa.m1/2) inhibit its usage in other potential applications where hig...

The quest for efficient utilization of renewable energy and development of sustainable, green energy sources have gathered enormous interest among the researchers since last decade. Solar and fuel cells provide a key solution to conversion and storage of energy. In this review, we revisited the potential of porous Si (PSi) and Dye Sensitized Solar...

Nanoscale materials have been receiving a great deal of attention in recent times for their extraordinary properties. They can be utilized in various areas including self-cleaning materials, cosmetics, textiles, electronics, and healthcare with remarkable results. This book article aims to provide a general understanding of nanoscale materials for...

In this paper, we report the synthesis of reduced Graphene Oxide-Tin Oxide nanocomposite and the effectiveness of this composite in decolorizing and degrading Methylene Blue (MB). Tin Oxide was prepared by liquid phase co-precipitation method and reduced Graphene Oxide-Tin Oxide (rGO-SnO2) nanocomposite was prepared by solution mixing method. Tin O...

Implementing texturization process on the monocrystalline silicon substrate reduces reflection and enhances light absorption of the substrate. Thus texturization is one of the key elements to increase the efficiency of solar cell. Considering as-cut monocrystalline silicon wafer as base substrate, in this work different concentrations of Na2CO3 and...

Aluminum Matrix Composites have potential applications in aerospace and automotive industries owing to their light weight and high temperature resistance. Graphene has superior mechanical properties, which make it hypothetically a good reinforcement in metal composites. In present study, reduced graphene oxide (rGO) reinforced aluminum matrix compo...

Pores are important intrinsic characteristic of a material, especially in special glass and porous ceramics. Utilization and manipulation of the porous property of a material have attracted increased interest recently for more sophisticated applications in membrane and energy sectors. Depending on pore size and structure, two different techniques o...

Composite comprising a porous silicon dioxide network coated in a carbon coating, an electrically conducting filler such as carbon black and a water dispersible or water soluble binder, preferably an alginate binder.

The high theoretical capacity and low discharge potential of silica (SiO 2 ) draw major interest these days as a serious competitor to Si-based anodes. The drastic volume expansion of Si during cycling leads to capacity fading and pulverization and thus requires advanced treatment to make it a viable electrode in Li-ion batteries ¹⁻⁴ . Abundantly a...

Properties of glasses like the density, viscosity, thermal expansion coefficient, chemical durability, electrical resistivity, and refractive index, as a function of bulk composition define the common structure models. The concepts of phase separation, bridging and non-bridging oxygen formation, network structures, and elemental effect on compositi...

The aim of this work is to study the behavior of cobalt ferrite nanoparticles during sintering. The size of prepared nanoparticles was in the range between 5 and 25 nm. The density of nanoparticles was measured using a Pycnometer and found to be 4.93 g cc-1. The nanoparticles were uniaxially pressed into disk samples, and sintered under a single, c...

Cobalt ferrite as a magnetostrictive material has recently become of interest to many researchers due to its promising magnetostrictive properties. It has been proposed as a suitable magnetostrictive material for some applications in the area of sensors and actuators. A review on magnetostrictive cobalt ferrite is performed. Chemical methods to pre...

Properties of glasses like the density, viscosity, thermal expansion coefficient, chemical durability, electrical resistivity, and refractive index, as a function of bulk composition define the common structure models. The concepts of phase separation, bridging and non-bridging oxygen formation, network structures, and elemental effect on compositi...

Porous glass is derived from glass that is heat treated to form two interconnecting phases: a silica-rich phase, and an alkali-rich borate phase. The heat-treated glass is then leached selectively to remove one of the phases. The heat-treatment step and leaching conditions can be adjusted to achieve the desired pore size, pore volume, and surface a...

A wireless sensor network is used for a variety of important applications in remote monitoring and target tracking. Recently, sensors have been manufactured to be smaller, cheaper, more intelligent, and equipped and interfaced wirelessly within a network for communication purposes. The infrastructure of wireless sensor networks depends on applicati...

A well-defined porous ceramic having effective pore size less than 1 µm was fabricated by slip casting technique which provides a low-cost and single-stage filtration process. This single-stage filtration process removed suspended solids and pathogenic organism. In this study, diatomaceous earth was used as pore forming agent in clay based ceramic...

In the phase of the study reported, the sol gel technique was followed in the preparation of cobalt ferrite amorphous powder following the same procedure which was selected as the best approach as described in a previous study. It was assumed that there must be a correlation between the heat treatment operational parameters and the structural prope...

Additions of zircon (ZrSiO4) were made to yield alkaline durable porous glasses based on the sodium borosilicate glass system. The glasses were characterised using differential thermal analysis (DTA) to identify the glass transition temperature and crystallisation temperature. The selected heat-treatment caused the glasses to phase separate by a sp...

Alkali resistant porous glass has been developed by making additions of ZrO2 in form of zircon (ZrSiO4) to the sodium borosilicate glass system SiO2-B2O3-Na2O. Differential thermal analysis (DTA) was carried out to determine the appropriate heat-treatment. Additions of ZrSiO4 reduced the crystallisation tendency and inhibit coarsening process durin...

Introduction Experimental Results and Discussion Conclusion

An addition of calcium oxide (CaO) was made in an attempt to retain more zirconia in porous glass based on zirconia added sodium borosilicate glass system. Additions of Zr-based compounds were made to yield more alkaline durable porous glass compared to the silica-rich porous glass structures achievable from the parent sodium borosilicate glass sys...

Macroporous alkali resistant glass has been developed by making additions of zirconia (ZrO2) and zircon (ZrSiO4) to the sodium borosilicate glass system SiO2–B2O3–Na2O. The glass was made using a traditional high temperature fusion process. Differential thermal analysis (DTA) was carried out to identify the glass transition temperature (Tg) and cry...

Crystallization behavior of ZrO2/ ZrSiO4 added borosilicate glass has been investigated using various temperature and time. Addition of ZrO2/ ZrSiO4 in borosilicate glass composition is believed to improve the alkaline resistance characteristics and open window for many applications where chemical durability is a prime requirement. It is found that...

Two types of commercially available nano-sized, ZrO<sub align="right"> 2 </sub>–3mol%Y<sub align="right"> 2 </sub>O<sub align="right"> 3 </sub> (Y-Tetragonal Zirconia Polycrystals (TZP)) powders were investigated. BET surface area analysis showed the powders to be nano-sized as determined using Equivalent Spherical Diameter (ESD<sub align="right">...

Commercially available nano-sized ZrO<sub align="right"> 2 </sub>-3mol%Y<sub align="right"> 2 </sub>O<sub align="right"> 3 </sub> (TZ-3Y-EB.) was investigated. Particle size of powder was found to be 1.29 µm, suggesting that the particles agglomerate in water. BET analysis yielded a specific surface area of 14.52 m²/g. The powder had a true density...