Author
Rock Keey Liew
Other affiliations: Universiti Malaysia Terengganu
Bio: Rock Keey Liew is an academic researcher from Georgetown University. The author has contributed to research in topics: Biochar & Pyrolysis. The author has an hindex of 23, co-authored 37 publications receiving 2041 citations. Previous affiliations of Rock Keey Liew include Universiti Malaysia Terengganu.
Topics: Biochar, Pyrolysis, Activated carbon, Adsorption, Carbonization
Papers
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TL;DR: In this paper, a microwave pyrolysis of biomass is proposed to produce activated biochar with desirable properties for wide application in pollution control, catalysis and energy storage, and the key implications for future development are highlighted.
433 citations
TL;DR: In this article, the authors acknowledge the financial support by Ministry of Science, Technology, and Innovation Malaysia (MOSTI), Ministry of Higher Education Malaysia (MOHE), and Universiti Malaysia Terengganu for the conduct of the research under the E-Science fund (UMT/RMC/SF/13/52072(5), Vot no. 52072), the Fundamental Research Grant Scheme (Project no. FRGS/1/2013/TK05/UMTs/02/2, Vot No. 59296), and the Research Acc
Abstract: The authors acknowledges the financial support by Ministry of Science, Technology, and Innovation Malaysia (MOSTI), Ministry of Higher Education Malaysia (MOHE), and Universiti Malaysia Terengganu for the conduct of the research under the E-Science fund (UMT/RMC/SF/13/52072(5), Vot no.: 52072), the Fundamental Research Grant Scheme (Project no.: FRGS/1/2013/TK05/UMT/02/2, Vot no.: 59296), and the Research Acculturation Grant Scheme (Project no.: RAGS/2012/UMT/TK07/3, Vot no.: 57085).
260 citations
TL;DR: In this article, the authors used microwave pyrolysis of palm kernel shell as the selected OPW produced a biochar with zero sulphur content and high heating value that is nearly comparable to conventional coal, thus indicating its potential as an eco-friendly solid fuel.
239 citations
TL;DR: The results indicate that the microwave-activation approach represents a promising attempt to produce good quality AC for dye adsorption and can be utilized as adsorbent to remove dye.
195 citations
TL;DR: Microwave-assisted pyrolysis with chemical activation was developed and optimized to transform orange peel into activated carbon (AC) desirable for use as a dye adsorbent as discussed by the authors.
194 citations
Cited by
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TL;DR: Different methods for lignin depolymerization can be divided into thermochemical treatment, mechanical treatment, chemical catalysis, and biological treatment, and their characteristics and products are extensively discussed in this article.
Abstract: Lignin is the most abundant aromatic polymer in nature. Due to its high amount of phenolic compounds storage, lignin is considered as an alternative source for various polymers and biomaterials production. Except for the native lignin in lignocellulose, a massive amount of technical lignin is being produced daily all over the world. However, the complex structure and low reactivity of lignin limit its further applications and currently, most of the lignin is burned for generating energy. Therefore, the depolymerization of lignin is considered one of the important challenges in lignin utilization. Methods for lignin depolymerization can be divided into thermochemical treatment, mechanical treatment, chemical catalysis, and biological treatment. Different methods for lignin depolymerization, their characteristics and products are extensively discussed in this review.
541 citations
TL;DR: In this paper, a microwave pyrolysis of biomass is proposed to produce activated biochar with desirable properties for wide application in pollution control, catalysis and energy storage, and the key implications for future development are highlighted.
433 citations
TL;DR: It can be concluded that biochar technology represents a new, cost effective, and environmentally-friendly solution for the treatment of wastewater.
409 citations
01 Mar 2020
TL;DR: In this paper, the King Abdullah University of Science and Technology at King Abdulaziz University (KAUST-KAU) and W.L.Y.Z.J.
Abstract: J.Y. and W.L.Z. contributed equally to this work. The research reported in this publication was supported by the King Abdullah University of Science and Technology – King Abdulaziz University (KAUST–KAU) Initiative (Grant # OSR-2018 KAUST-KAU-3903).
341 citations
TL;DR: In this article, a review of protocols and procedures for the synthesis of nanomaterials, polymers, and green materials as adsorbents used for water purification is presented.
Abstract: Water pollution caused by numerous pollutants has become one of the critical problems globally. Different technologies and materials are used for the treatment of wastewater. There is a need for protocols and procedures that act as guidelines for researchers to develop and evaluate new adsorbent materials for wastewater treatment. This review takes a step toward developing organized protocols and procedures for the synthesis of nanomaterials, polymers, and green materials as adsorbents used for water purification. In the present review, protocols, and procedures for the synthesis of adsorbents, such as nanomaterials, waste-derived materials, and polymers are proposed Furthermore, protocols for evaluating these materials for water treatment are provided. The reported protocols and procedures will provide guidelines for researchers and industrial workers to develop and evaluate new materials for water treatment.
337 citations