Removal of total chromium in wastewater <i>via</i> simultaneous photocatalysis and adsorption using calcium silicate hydrate-based composites

Liu, Min; Liu, Qi; Jin, Xue-Ting; Zou, Ya-Chen; Li, Di-Ning; Feng, Pan; Luo, Yang-Hui

doi:10.1039/d3ta05384a

J. Mater. Chem. A

2023

DOI: 10.1039/d3ta05384a

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Removal of total chromium in wastewater via simultaneous photocatalysis and adsorption using calcium silicate hydrate-based composites

Min Liu,

Qi Liu,

Xue-Ting Jin

et al.

Abstract: Converting Cr(VI) to Cr(III) and subsequent precipitation of Cr(III) represents an efficient approach for wastewater treatment. However, total Cr(III) removal needs a high cost for pH adjustment, and second pollution...

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Cited by 6 publications

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Smart Building Material with Near‐Infrared‐Triggered Reversible Color Switching

Liu,

Chen,

Jin

et al. 2024

Adv Eng Mater

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Smart materials and devices play an increasingly important role in improving modern life due to their richer functions, enhanced controllability, and improved biocompatibility. Here, calcium silicate hydration (C‐S‐H) was integrated with layered [Co(NCS)2(pyrazine)2]n metal‐organic frameworks (Co‐MOF) and polymeric skeleton to fabricate the smart building material (M‐C‐S‐H). C‐S‐H was anchored on the polymeric skeleton to reinforce the network structure for enhanced mechanical strength and toughness. Simultaneously, the highly porous skeleton structure enabled the uniform distribution of layered Co‐MOF, which could maintain its molecular form to endow the M‐C‐S‐H with the photoresponsive color‐switching performance. The M‐C‐S‐H as a smart building material exhibited the color change between light blue and black blue upon NIR illumination on/off within a wide temperature range to achieve personalized wall and building decoration. Taking advantage of the low cost, rapid response, outstanding reversibility, and good color stability, M‐C‐S‐H could provide lively, dynamic, changeable decorating effects for walls and buildings.This article is protected by copyright. All rights reserved.

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Smart Building Material with Near‐Infrared‐Triggered Reversible Color Switching

Liu,

Chen,

Jin

et al. 2024

Adv Eng Mater

Self Cite

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Porous Calcium‐Silicate‐Hydrate as a Low‐Cost Nano‐Platform for Ultra‐High CO₂ Capture and Storage

Liu,

Cai,

Liu

et al. 2023

Small Methods

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CO2 capture and storage have been regarded as promising concepts to reduce anthropogenic CO2 emissions. However, the high cost, inferior adsorption capacity, and higher effective activation temperature of traditional sorbents limit their practical application in efficient CO2 capture. Here, a C‐S‐H@ZIF‐8 (C‐S‐Z) sorbent is fabricated by in situ growth of the ZIF‐8 shell on the C‐S‐H (calcium‐silicate‐hydrate) surface for ultra‐high CO2 adsorption and storage. Among the C‐S‐Z, the outer ZIF‐8 shell acts as a transport channel that promotes CO2 absorption toward the underlying C‐S‐H substrate for accelerated carbonation while preventing nitrogen and water from reaching the interior C‐S‐H. As a consequence, C‐S‐Z possesses the merits of ample pyrrolic nitrogen, porous structure, and ultra‐high surface area (577.18 m2 g−1), that contribute to an ultra‐high CO2 capture capacity, reaching 293.6 mg g−1. DFT calculations show a high CO2 adsorption energy and the mineral carbonation is dominant by the adsorption process. In particular, the advantages of the outstanding adsorption capacity, low cost, and high CO2 selectivity make this C‐S‐H‐based sorbent hold great potential in the practical application for direct air CO2 capture and storage.

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Application and thermodynamic analysis of iron and chromium fractional recovery and phosphoric acid regeneration from iron phosphate pre-solution

Cao,

Ma,

Wang

et al. 2024

Chemical Engineering Journal

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Removal of total chromium in wastewater via simultaneous photocatalysis and adsorption using calcium silicate hydrate-based composites

Abstract: Converting Cr(VI) to Cr(III) and subsequent precipitation of Cr(III) represents an efficient approach for wastewater treatment. However, total Cr(III) removal needs a high cost for pH adjustment, and second pollution...

Cited by 6 publications

References 50 publications

Smart Building Material with Near‐Infrared‐Triggered Reversible Color Switching

Smart Building Material with Near‐Infrared‐Triggered Reversible Color Switching

Porous Calcium‐Silicate‐Hydrate as a Low‐Cost Nano‐Platform for Ultra‐High CO₂ Capture and Storage

Application and thermodynamic analysis of iron and chromium fractional recovery and phosphoric acid regeneration from iron phosphate pre-solution

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About

Removal of total chromium in wastewater via simultaneous photocatalysis and adsorption using calcium silicate hydrate-based composites

Abstract: Converting Cr(VI) to Cr(III) and subsequent precipitation of Cr(III) represents an efficient approach for wastewater treatment. However, total Cr(III) removal needs a high cost for pH adjustment, and second pollution...

Cited by 6 publications

References 50 publications

Smart Building Material with Near‐Infrared‐Triggered Reversible Color Switching

Smart Building Material with Near‐Infrared‐Triggered Reversible Color Switching

Porous Calcium‐Silicate‐Hydrate as a Low‐Cost Nano‐Platform for Ultra‐High CO2 Capture and Storage

Application and thermodynamic analysis of iron and chromium fractional recovery and phosphoric acid regeneration from iron phosphate pre-solution

Contact Info

Product

Resources

About

Porous Calcium‐Silicate‐Hydrate as a Low‐Cost Nano‐Platform for Ultra‐High CO₂ Capture and Storage