Special Issues
Table of Content

From Municipal Solid Waste to Renewable Materials for Sustainable Application

Submission Deadline: 01 December 2024 View: 11 Submit to Special Issue

Guest Editors

Dr. Hwei Voon Lee, Associate Professor, Nanotechnology and Catalysis Research Centre (NANOCAT), Universiti Malaya, Malaysia.

Dr Lee is an Associate Professor based in the Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Malaysia. She obtained her BSc (Hons) Industrial Chemistry and PhD in Catalysis degrees from the Universiti Putra Malaysia, Malaysia. Her research expertise is in the field of nanotechnology and catalysis. She is active in the research of catalytic conversion technology, which involves the topics of catalysis design (metal oxide, solid based catalyst, catalyst from waste material); application in renewable energy (liquid and solid biofuels), biochemical synthesis, and advance nanomaterial application (biomass-derived nanocellulose).

To date, Dr Lee’s research works have been published in more than 80 refereed international top-tier journals, with total citation of 4158 and h-index of 36. Her research has been funded by the Ministry of Higher Education of Malaysia; Ministry of Science, Technology and Innovation of Malaysia (MOSTI), University of Malaya Research Grant, as well as International Industrial Fundings. The efforts in contributing to her research has received recognition with Excellence service award, University of Malaya 2021, as well as several prestigious innovation and invention awards, such as World's Top 2% Scientists by Stanford University (2020), Asian Universities Alliance (AUA) Scholars Award (2020), etc.

Summary

Municipal solid waste (MSW) is non-hazardous disposable materials that are generated from everyday activities by households, institutions, industries, agriculture, and sewage. Every year, approximately 2.01 billion tons of MSW is generated with an expected fast growth rate to 3.40 billion tons by 2050.  Inappropriate MSW management will result in serious air, soil, and groundwater pollution, which brings vast implications to the environment, health, and prosperity. Generally, more than 50% of municipal waste is from organic fractions (e.g. food waste, garden waste, papers and cardboards wastes, wood, plastics wastes, rubbers/leathers, and textile wastes), while the rest of non-organic (inorganic) contents are glasses and metals. The bio-based waste in organic portions is composed of important compounds such as biogenic carbon, biogenic minerals (e.g. calcium carbonate, phosphates, and silica compound), polysaccharides (starch/cellulose and hemicellulose), and aromatic polymer (lignin). Thus, it is important to valorize organic wastes for sustainable and green product development. Researchers and industrialists are highly focused on R&D of organic waste-derived materials from macro-, micro- to nano-sizes, which aims to emerge advanced applications of heterogeneous catalysis, green construction materials, smart materials for electronics and sensor, bioactive compounds in biomedicine; biofilter/biosorbent for water treatment and environment; fuels and energy, natural reinforcing materials/biocomposites, etc. Although MSW-derived nanomaterials meet the green line of sustainable concern, however, varying proportions and compositions of waste have become extremely challenging for effective management. Hence, the aim of the Special Issue “From municipal solid waste to renewable materials for sustainable application” is to provide an overview of recent challenges and development of MSW-derived sustainable materials.

 

Topics of interest include, but are not limited to:

i. The recycling of natural waste shells-derived materials (biogenic minerals), such as calcium carbonate or hydroxyapatite"

ii. Biomass-derived cellulose/micro-/nanocellulose fibers and lignin nanoparticles

iii. Biogenic carbon from organic wastes/municipal wastes

iv. Porous-based materials derived from organic wastes/municipal wastes


Keywords

Bio-based materials, bio-based nanomaterials, organic wastes, top-down approaches, environmental friendly application, valorization, waste bioeconomy, circular economy

Published Papers


  • Open Access

    ARTICLE

    Characterization and Selection of Microcrystalline Cellulose from Oil Palm Empty Fruit Bunches for Strengthening Hydrogel Films

    Susi Susi, Makhmudun Ainuri, Wagiman Wagiman, Mohammad Affan Fajar Falah
    Journal of Renewable Materials, Vol.12, No.3, pp. 513-537, 2024, DOI:10.32604/jrm.2024.045586
    (This article belongs to the Special Issue: From Municipal Solid Waste to Renewable Materials for Sustainable Application)
    Abstract Microcrystalline cellulose (MCC) is one of the cellulose derivatives produced as a result of the depolymerization of a part of cellulose to achieve high crystallinity. When implemented in other polymers, high crystallinity correlates with greater strength and stiffnes, but it can reduce the water-holding capacity. The acid concentration and hydrolysis time will affect the acquisition of crystallinity and water absorption capacity, both of which have significance as properties of hydrogel filler. The study aimed to evaluate the properties and select the MCC generated from varying the proportion of hydrochloric acid (HCl) and the appropriate hydrolysis… More >

    Graphic Abstract

    Characterization and Selection of Microcrystalline Cellulose from Oil Palm Empty Fruit Bunches for Strengthening Hydrogel Films

  • Open Access

    ARTICLE

    Folic Acid-Functionalized Nanocrystalline Cellulose as a Renewable and Biocompatible Nanomaterial for Cancer-Targeting Nanoparticles

    Thean Heng Tan, Najihah Mohd Hashim, Wageeh Abdulhadi Yehya Dabdawb, Mochamad Zakki Fahmi, Hwei Voon Lee
    Journal of Renewable Materials, Vol.12, No.1, pp. 29-43, 2024, DOI:10.32604/jrm.2023.043449
    (This article belongs to the Special Issue: From Municipal Solid Waste to Renewable Materials for Sustainable Application)
    Abstract The study focuses on the development of biocompatible and stable FA-functionalized nanocrystalline cellulose (NCC) as a potential drug delivery system for targeting folate receptor-positive cancer cells. The FA-functionalized NCCs were synthesized through a series of chemical reactions, resulting in nanoparticles with favorable properties for biomedical applications. The microstructural analysis revealed that the functionalized NCCs maintained their rod-shaped morphology and displayed hydrodynamic diameters suitable for evading the mononuclear phagocytic system while being large enough to target tumor tissues. Importantly, these nanoparticles possessed a negative surface charge, enhancing their stability and repelling potential aggregation. The binding specificity… More >

    Graphic Abstract

    Folic Acid-Functionalized Nanocrystalline Cellulose as a Renewable and Biocompatible Nanomaterial for Cancer-Targeting Nanoparticles

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