Guest Editors
Chin Wei Lai, Professor, University of Malaya, Malaysia.
Dr. Lai Chin Wei is a senior lecturer in the Nanotechnology & Catalysis Research Centre, University of Malaya. Lai’s main research interests are in the areas of chemically modified metal oxide photocatalysts and carbon graphene materials, especially apply in environmental pollution management and solar energy technology. Lai has contributed immensely to the development and enhancement in science & technology in Malaysia, particularly in developing, optimizing and simplifying the technology lies in the synthesis of nanoparticles, metal oxide nano-architecture and carbon/graphene materials which are of high significance for green renewable energy and environment applications. Lai’s works have been published in more than 190 refereed international top-tier journals with h-index of 25, 50 book chapters, and 135 international proceedings in materials science, physics, chemistry, and renewable energy researches. In all, Lai has reviewed more than 550 papers in the past few years, mainly for top international journals / conferences and now serving as associate editors, guest editors, topic editors and editorial board members for several prestigious international journals.
Summary
With the emerging technology in the 21st century, carbon based nanomaterials are used in numerous fields. The new nano-based entities are being strongly generated and incorporated into everyday personal care products, cosmetics, medicines, drug delivery, and clothing to impact industrial and manufacturing sectors, which means that nanomaterials commercialization and nano-assisted device will continuously grow. The focus of the special issue is the detailed literature data and discussion regarding the carbon based nanomaterials from renewable materials such as bamboo, by-products of crops, fruits, plants and cottons. Those renewable raw materials are (nearly) inexhaustible natural resources, the supply of which can be restored in a short period of time as well as contain many valuable components. Additionally, design and development of carbon based nanomaterials into different structure such as carbon nanotubes, biomass, cellulose, graphene oxide and graphene assemblies has gained significant scientific interest and becomes the most studied material as it exhibits promising functional properties. Innovative new approaches and synthesis of a high quality carbon-based nanomaterials from different renewable materials are critical and crucial for determining the potential of the material in various promising applications such as environmental pollution management, renewable energy system as well as energy storage system. This special issue describes the novel concept of different forms of carbon based nanomaterials which are of value to researchers in developing cost effective and user friendly products, devices, or systems. In order to fully exploit the potential of carbon-based nanomaterials, developing low cost, environment-friendly nanocomposite from renewable material resources is certainly a research direction that should be extensively investigated in the future.
Keywords
carbon-based nanomaterials, renewable materials, carbon nanotubes, biomass, cellulose, graphene oxide and graphene assemblies
Published Papers
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Open Access
ARTICLE
Low-Temperature Synthesis of Nano-AlN Based on Solid Nitrogen Source by Plasma-Assisted Ball Milling
Zhuoli Yang, Xianbin Hou, Leyang Dai
Journal of Renewable Materials, DOI:10.32604/jrm.2023.025723
（This article belongs to this Special Issue:
Carbon-Based Nanomaterials from Renewable Materials: Synthesis, Properties and Applications)
Abstract Plasma-assisted ball milling was carried out on the Al+C
3H
6N
6 system and Al+C
4H
4N
4 system, respectively. The
phase structure, functional groups and synthesis mechanism were analyzed by XRD and FT-IR, and the differences in the synthesis process of nano-AlN with different solid nitrogen sources were discussed. The results show
that C
3H
6N
6 has a stable triazine ring structure, and its chemical bond is firm and difficult to break, so AlN cannot be synthesized directly by solid-solid reaction at room temperature. However, there are a large number of
nitrile groups (-CN) and amino groups (-NH2) in C
4H
4N
4 molecules. Under the combined action of plasma…
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Open Access
REVIEW
A Review of Graphene Oxide Crosslinking as Enhanced Corrosion Shield Application
Nurul Anis Athirah Ab Aziz, Chin Wei Lai, Boon Hoong Ong
Journal of Renewable Materials, DOI:10.32604/jrm.2023.025899
（This article belongs to this Special Issue:
Carbon-Based Nanomaterials from Renewable Materials: Synthesis, Properties and Applications)
Abstract Nowadays, corrosion is not only undesirable, but it also has a significant influence on the industrial sectors and
technical innovations that have demand for metals. The global economic damage is expected to reach $2.5 trillion,
equivalent to more than 3.4% of the world’s GDP in 2013. It is linked with significant financial harm, manufacturing pollution, and safety issues. An electrochemical process primarily induces metal corrosion at the metalelectrolyte interface region, caused by steel oxidation and the reduction of oxygen, protons, and water. Therefore,
organic and epoxy coatings can be applied as protective coatings. Additionally, it can prevent metal corrosion in…
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Open Access
ARTICLE
Effect of Different Etching Time on Fabrication of an Optoelectronic Device Based on GaN/Psi
Haneen D. Jabbar, Makram A. Fakhri, Mohammed Jalal Abdul Razzaq, Omar S. Dahham, Evan T. Salim, Forat H. Alsultany, U. Hashim
Journal of Renewable Materials, Vol.11, No.3, pp. 1101-1122, 2023, DOI:10.32604/jrm.2023.023698
（This article belongs to this Special Issue:
Carbon-Based Nanomaterials from Renewable Materials: Synthesis, Properties and Applications)
Abstract Gallium nitride (GaN)/porous silicon (PSi) film was prepared using a pulsed laser deposition method and 1064 nm Nd: YAG laser for optoelectronic applications and a series of Psi substrates were fabricated using a photoelectrochemical etching method assisted by laser at different etching times for 2.5–15 min at 2.5 min intervals. X-ray diffraction, room-temperature photoluminescence, atomic force microscopy and field emission scanning electron microscopy images, and electrical characteristics in the prepared GaN on the Psi film were investigated. The optimum Psi substrate was obtained under the following conditions: 10 min, 10 mA/cm
2, and 24% hydrofluoric acid. The substrate exhibited two highly cubic crystalline structures at (200)…
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Open Access
ARTICLE
Graphene-Based Active Tunable Metasurfaces for Dynamic Terahertz Absorption and Polarization Conversion
Haoran Wei, Tian Ji, Jianqing Huang
Journal of Renewable Materials, Vol.11, No.2, pp. 731-743, 2023, DOI:10.32604/jrm.2022.022283
（This article belongs to this Special Issue:
Carbon-Based Nanomaterials from Renewable Materials: Synthesis, Properties and Applications)
Abstract Simultaneous broadband absorption and polarization conversion are crucial in many practical applications, especially in terahertz communications. Thus, actively tunable metamaterial systems can exploit the graphene-based
nanomaterials derived from renewable resources because of the flexible surface conductivity and selective permeability of the nanomaterials at terahertz frequencies. In this paper, we propose a graphene-based active tunable
bifunctional metasurface for dynamic terahertz absorption and polarization conversion. The graphene ring presents a certain opening angle (A) along the diagonal of the xoy plane. When
A = 0°, the proposed metasurface
behaves as a broadband absorber. Numerical results show the feasibility of achieving this polarization-insensitive…
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