Výsledky vyhledávání - "Siew Chin Cheu"

Enhanced adsorption capacity and selectivity toward inorganic and organic mercury ions from aqueous solution by dye-affinity adsorbents

Autor: Norasikin Saman, Hanapi Mat, Siew Chin Cheu, Shiow Tien Song, Helen Kong, Khairiraihanna Johari

Publikováno v: Environmental Progress & Sustainable Energy. 38:S54-S67

Adsorption of inorganic mercury [Hg(II)] and organic methylmercury [MeHg(II)] ions onto dye-affinity agrowaste (dye-AW) was investigated. The dye-affinity adsorbents were prepared by the chemical-thermal reaction between the agrowaste (AW) and dye so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4754a4a62c584a5e6e965cb3fb456ce7
https://doi.org/10.1002/ep.12915

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Cetyltrimethylammonium bromide-coated agrosorbents and their high benzene adsorption performance from aqueous solution

Autor: Shiow Tien Song, Jimmy Wei Ping Lye, Helen Kong, Hanapi Mat, Norasikin Saman, Siew Chin Cheu, Nurul Sakinah Othman, Khairiraihanna Johari

Publikováno v: Environmental Progress & Sustainable Energy. 37:305-317

Cetyltrimethylammonium bromide-coated agrosorbents were successfully synthesized through firstly mercerization of raw banana trunk (Raw-BT) with alkali (M-BT) and finally coating with cetyltrimethylammonium bromide (M-CTAB-BT). The characterization w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2885084e5b0f05d246e882ecd2ffb015
https://doi.org/10.1002/ep.12678

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Adsorption affinity and selectivity of 3-ureidopropyltriethoxysilane grafted oil palm empty fruit bunches towards mercury ions

Autor: Magendran Kunjirama, Siew Chin Cheu, Khairiraihanna Johari, Jimmy Wei Ping Lye, Helen Kong, Hanapi Mat, Norasikin Saman, Shiow Tien Song

Publikováno v: Environmental Science and Pollution Research. 24:15167-15181

This study was conducted to investigate the potential application of oil palm empty fruit branches (OPEFB) as adsorbents to remove organic methylmercurry, MeHg(II), and inorganic Hg(II) from aqueous solution. The OPEFB was functionalized with amine c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09797acbbd403a071bd447144e279114
https://doi.org/10.1007/s11356-017-9117-z

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High removal efficacy of Hg(II) and MeHg(II) ions from aqueous solution by organoalkoxysilane-grafted lignocellulosic waste biomass

Autor: Khairiraihanna Johari, Norasikin Saman, Helen Kong, Hanapi Mat, Siew Chin Cheu, Shiow Tien Song

Publikováno v: Chemosphere. 171:19-30

An effective organoalkoxysilanes-grafted lignocellulosic waste biomass (OS-LWB) adsorbent aiming for high removal towards inorganic and organic mercury (Hg(II) and MeHg(II)) ions was prepared. Organoalkoxysilanes (OS) namely mercaptoproyltriethoxylsi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22d5ddb55febe72e16c0d590aa07af4f
https://doi.org/10.1016/j.chemosphere.2016.12.049

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Development of coconut pith chars towards high elemental mercury adsorption performance – Effect of pyrolysis temperatures

Autor: Helen Kong, Siew Chin Cheu, Shiow Tien Song, Hanapi Mat, Norasikin Saman, Khairiraihanna Johari

Publikováno v: Chemosphere. 156:56-68

In this study, chars from coconut pith (CP) were prepared aiming for superior adsorption towards elemental mercury (Hg(o)). The yield, proximate analysis, textural characteristics, surface functional groups and elemental composition analyses of the c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69227a85ce0fdc12ba15ec992b22b7af
https://doi.org/10.1016/j.chemosphere.2016.04.114

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Process analysis of mercury adsorption onto chemically modified rice straw in a fixed-bed adsorber

Autor: Khairiraihanna Johari, Hanapi Mat, Ying Fong Hau, Shiow Tien Song, Siew Chin Cheu, Helen Kong, Norasikin Saman

Publikováno v: Journal of Environmental Chemical Engineering. 4:1685-1697

The potential application of chemically modified rice straw (RSGM) was investigated in a fixed-bed adsorber as an extension of our previous batch adsorption studies. The effect of flow rates (2 mL/min, 4 mL/min and 8 mL/min), Hg(II) concentrations (5

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea4a25550157b3500184cb38be9b0987
https://doi.org/10.1016/j.jece.2016.02.033

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High removal efficiency of Hg(II) and MeHg(II) from aqueous solution by coconut pith—Equilibrium, kinetic and mechanism analyses

Autor: Khairiraihanna Johari, Shiow Tien Song, Hanapi Mat, Helen Kong, Siew Chin Cheu, Norasikin Saman

Publikováno v: Journal of Environmental Chemical Engineering. 4:2487-2499

This study was conducted to investigate the high efficiency of coconut pith (CP) adsorbent in removing Hg(II) and MeHg(II) ions from aqueous solution. The CP adsorbent was characterized using a scanning electron microscope (SEM), nitrogen adsorption-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10b58d41b25cfdb23844a1c62e01743f
https://doi.org/10.1016/j.jece.2016.04.033

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Separation of dissolved oil from aqueous solution by sorption onto acetylated lignocellulosic biomass—equilibrium, kinetics and mechanism studies

Autor: Helen Kong, Khairiraihanna Johari, Shiow Tien Song, Siew Chin Cheu, Hanapi Mat, Mohd Azizi Che Yunus, Norasikin Saman

Publikováno v: Journal of Environmental Chemical Engineering. 4:864-881

The potential use of lignocellulosic biomass as oil sorbents was demonstrated through acetylation of mercerized pineapple leaves (M-PAL) using acetic anhydride with catalysts ( N -bromosuccinimide and pyridine) in order to enhance its surface hydroph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::79898418eb11dd6955a339170e81b594
https://doi.org/10.1016/j.jece.2015.12.028

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Surfactant modification of banana trunk as low-cost adsorbents and their high benzene adsorptive removal performance from aqueous solution

Autor: Siew Chin Cheu, Hanapi Mat, Khariraihanna Johari, Norasikin Saman, Nurul Sakinah Othman, Shiow Tien Song, Helen Kong

Publikováno v: RSC Advances. 6:24738-24751

The banana trunk was modified using cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulphate (SDS), poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (Pluronic 123), and 4-(1,1,3,3-tetramethylbutyl)phenyl-polyethyle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebe66b438b62efa7f020bccf45cd3f43
https://doi.org/10.1039/c6ra00911e

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High removal performance of dissolved oil from aqueous solution by sorption using fatty acid esterified pineapple leaves as novel sorbents

Autor: Norasikin Saman, Hanapi Mat, Siew Chin Cheu, Khairiraihanna Johari, Shiow Tien Song, Helen Kong

Publikováno v: RSC Advances. 6:13710-13722

This paper demonstrates the potential use of the lignocellulosic biomass of pineapple leaves (PALs) as an oil sorbent by mercerization and esterification with long chain fatty acids in order to enhance the surface hydrophobicity and thus the oil sorp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6532781dce2479fb7a6290c2abb279c
https://doi.org/10.1039/c5ra22929d

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