Chin‐Pao Huang

National Yang Ming Chiao Tung University

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Chiu‐Wen Chen

National Kaohsiung University of Science and Technology

Cheng‐Di Dong

National Kaohsiung Marine University

Chang‐Mao Hung

National Kaohsiung University of Science and Technology

Thanh-Binh Nguyen

National Kaohsiung University of Science and Technology

Cheng–Di Dong

University of Science and Technology

Yu‐Jen Shih

National Sun Yat-sen University

Ruey‐an Doong

National Tsing Hua University

Jianmin Wang

Missouri University of Science and Technology

Pen‐Chi Chiang

National Taiwan University

Herbert E. Allen

University of Delaware

Cooperative Institutions

University of Delaware

National Taiwan University

Chinese Academy of Sciences

National Kaohsiung University of Science and Technology

National Cheng Kung University

National Kaohsiung Marine University

National Yang Ming Chiao Tung University

National Sun Yat-sen University

University of Chinese Academy of Sciences

Research Center for Eco-Environmental Sciences

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Humic and Fulvic Acid Adsorption by Silicon and Aluminum Oxide Surfaces on Clay Minerals

Soil Science Society of America Journal (1991)

Cristian P. Schulthess Chin‐Pao Huang

Abstract Natural (untreated) clays are most probably amorphous on their outermost surface layers due to the continuous and natural process of partial dissolution and reprecipitation of the clay components at the solid‐aqueous interface. The pH‐dependent adsorption on Al and Si oxides, mordenite, kaolinite, and montmorillonite of a humic acid (HA) and a fulvic acid (FA) was described as occurring on Al and Si sites. The surfaces of the clay minerals were modeled as mixtures of amorphous Al and Si oxides. The results showed a strong adsorption of the organics by the Al sites on the Al oxide and kaolinite, and a weak adsorption of organics by the Si sites on the Si oxide, mordenite, and montmorillonite. At low pH values, the Si sites on the Si oxide, mordenite, and montmorillonite adsorbed FA; these latter observations strongly suggest that the adsorption of FA by the interplanar spaces of expanding clays is driven by forces that can be studied using amorphous Si oxide as the adsorbent. Multivalent cations will form organo‐metallic complexes that significantly increase adsorption, particularly on Si sites; exceptions were found with some FA‐metal complexes, which were attributed to the degree of complexation. The implication of these observations is that, in natural systems, the adsorption of aqueous compounds is highly dependent on the type of (amorphous) surface present at the outermost layer of the solid phase in contact with the liquid phase.

Mordenite

Oxide minerals

10.2136/sssaj1991.03615995005500010006x

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Citations (116)

Degradation of organic contaminants in marine sediments by peroxymonosulfate over LaFeO3 nanoparticles supported on water caltrop shell-derived biochar and the associated microbial community responses

Journal of Hazardous Materials (2021)

Chang‐Mao Hung Chin‐Pao Huang Chiu‐Wen Chen Cheng‐Di Dong

Degradation

10.1016/j.jhazmat.2021.126553

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Citations (52)

Recent Advances in Carbon Dioxide Conversion: A Circular Bioeconomy Perspective

Sustainability (2021)

TsingHai Wang Cheng‐Di Dong Jui-Yen Lin Chiu-Wen Chen Jo‐Shu Chang

Managing the concentration of atmospheric CO2 requires a multifaceted engineering strategy, which remains a highly challenging task. Reducing atmospheric CO2 (CO2R) by converting it to value-added chemicals in a carbon neutral footprint manner must be the ultimate goal. The latest progress in CO2R through either abiotic (artificial catalysts) or biotic (natural enzymes) processes is reviewed herein. Abiotic CO2R can be conducted in the aqueous phase that usually leads to the formation of a mixture of CO, formic acid, and hydrogen. By contrast, a wide spectrum of hydrocarbon species is often observed by abiotic CO2R in the gaseous phase. On the other hand, biotic CO2R is often conducted in the aqueous phase and a wide spectrum of value-added chemicals are obtained. Key to the success of the abiotic process is understanding the surface chemistry of catalysts, which significantly governs the reactivity and selectivity of CO2R. However, in biotic CO2R, operation conditions and reactor design are crucial to reaching a neutral carbon footprint. Future research needs to look toward neutral or even negative carbon footprint CO2R processes. Having a deep insight into the scientific and technological aspect of both abiotic and biotic CO2R would advance in designing efficient catalysts and microalgae farming systems. Integrating the abiotic and biotic CO2R such as microbial fuel cells further diversifies the spectrum of CO2R.

Biotic component

10.3390/su13126962

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Citations (5)

Nitrate reduction by metallic iron

Water Research (1998)

Chin‐Pao Huang Hung-Wen Wang Pei‐Chun Chiu

Zerovalent iron

10.1016/s0043-1354(97)00464-8

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Citations (468)

The distribution of adsorption energy of U(VI) onto AEPTES-functionalized porous silica with multiple average pore sizes

Chemical Engineering Journal (2022)

Kegang Wei Qingliang Wang Chin‐Pao Huang

Zeta potential

10.1016/j.cej.2022.138716

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Citations (11)

Nitrogen and boron co-doped lignin biochar for enhancing calcium peroxide activation toward organic micropollutants decontamination in waste activated sludge and related microbial structure dynamics

Bioresource Technology (2023)

Chang‐Mao Hung Chiu‐Wen Chen Chin‐Pao Huang Cheng‐Di Dong

Human decontamination

10.1016/j.biortech.2023.128673

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Citations (10)

Effects of Dissolved Organic Matter and pH on Heavy Metal Uptake by Sludge Particulates Exemplified by Copper(II) and Nickel(II): Three‐Variable Model

Water Environment Research (1999)

Jianmin Wang Chin‐Pao Huang Herbert E. Allen Ira Poesponegoro Haryanto Poesponegoro

Dissolved organic matter (DOM) and pH are important factors affecting heavy metal uptake by sludge particulates. Copper(II) and Nickel(II) uptake behavior by primary and secondary sludge particulates was studied under various pH and DOM conditions. A three‐variable model, incorporating effects of pH and DOM, was developed to describe heavy metal uptake. Results show that heavy metal uptake by sludge particulates can be better described by the three‐variable model than by the modified Langmuir model in a wide pH range.

10.2175/106143099x121517

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Citations (60)

Electro-sorption of ammonium ion onto nickel foam supported highly microporous activated carbon prepared from agricultural residues (dried Luffa cylindrica)

The Science of The Total Environment (2019)

Yu‐Jen Shih Cheng‐Di Dong Yao-Hui Huang Chin‐Pao Huang

Physisorption

Sodium sulfate

Carbon fibers

10.1016/j.scitotenv.2019.04.066

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Citations (29)

The Uptake of Engineered Nanoparticles by Sludge Particulates

Water (2023)

Soohoon Choi Murray V. Johnston Gen‐Shuh Wang Chin‐Pao Huang

The aim of the study was to understand the removal characteristics of engineered nanoparticles (ENP) from sludge treatment processes in wastewater treatment plants (WWTP). Removal of ENP (TiO2, ZnO) was tested on primary and secondary sludge, using differential sedimentation experiments to quantify the attachment of ENP to sludge particulates. To better understand the attachment characteristics, aquatic conditions such as mixed liquid suspended solid concentration, and Ionic strength of the wastewater, were varied to replicate different field conditions of WWTPs. Results showed different degrees of multilayer attachment to sludge surfaces based on the experimental conditions. To verify the effect of ENP surface characters with the sludge attachment, SiO2, ZnO, and TiO2 were tested, showing SiO2 with the highest amount of attachment regardless of its surface charge. With the variation of sludge concentration, up to four degrees of magnitude in sorption was observed. Salt concentrations also showed high impacts on the sorption, where the sorption is decreased by half when doubling the salt concentration. The findings of the current research may aid in understanding the fate of engineered nanoparticles in wastewater treatment plants.

Sedimentation

Sewage sludge

10.3390/w15162872

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Citations (2)

Adsorption characteristics of ammonium ion onto hydrous biochars in dilute aqueous solutions

Bioresource Technology (2018)

Ruemei Fan Ching-Lung Chen Jui-Yen Lin Jing‐Hua Tzeng Chihpin Huang

10.1016/j.biortech.2018.10.064

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Citations (103)