A state-of-the-art review on capture and separation of hazardous hydrogen sulfide (H2S): Recent advances, challenges and outlook

Chan, Yi Herng; Lock, Serene Sow Mun; Wong, Mee Kee; Yiin, Chung Loong; Loy, Adrian Chun Minh; Cheah, Kin Wai; Chai, Slyvester Yew Wang; Li, Claudia; How, Bing Shen; Chin, Bridgid Lai Fui; Chan, Zhe Phak; Lam, Su Shiung

doi:10.1016/j.envpol.2022.120219

Cited by 53 publications

(15 citation statements)

References 183 publications

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“…In addition, the exposure limit value of H 2 S established by the US National Institute for Occupational Health and the Japanese and Swedish equivalents is 10 ppm for every 10 min . H 2 S is generated by many industrial activities, including the petroleum refinery, pulp and paper industry, heavy water production, tanneries, and mining, resulting in occupational exposure and widespread poisoning in the environment. , Thus, the toxicity of H 2 S is of great concern to human health. Moreover, endogenous H 2 S with the concentration range from 10 to 100 μM in blood is endowed with some properties of regulating blood pressure, oxidative stress, and inflammation, demonstrating an opportunity to diagnose the disease by monitoring the endogenous H 2 S levels.…”

Section: Introductionmentioning

confidence: 99%

Label-Free, Reusable, Equipment-Free, and Visual Detection of Hydrogen Sulfide Using a Colorimetric and Fluorescent Dual-Mode Sensing Platform

Liu

Wan

et al. 2023

Anal. Chem.

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In this work, we have found for the first time that the fluorescence of rhodamine B (RhB) would be dramatically reduced after it bound to hemin/G-quadruplex and reacted with •OH. Based on this finding, we have designed a colorimetric and fluorescent dual-mode sensing platform for visual detection of hydrogen sulfide (H2S). The constructed sensor is based on the formation of dsDNA and the G-quadruplex structure by the cytosine-Ag+-cytosine mismatch, causing H2O2-mediated catalysis to oxidize ABTS or RhB to induce a colorimetric or fluorescent change. In the presence of H2S, the solution color for colorimetric and fluorescent assays would change from dark green to pink and from green (fluorescence off) to bright yellow (fluorescence on), respectively. This dual-mode assay showed high selectivity toward H2S over other interference materials with a low measurable detection limit value (below than 2.5 μM), and it has been successfully applied to H2S visual detection in real samples. Moreover, the dual-mode sensing strategy presented an excellent reutilization character both in colorimetric and fluorescent assays. This method was employed as a label-free, simple, fast, and equipment-free platform for H2S detection with high selectivity and reusability. This work realized naked-eye detection both in colorimetric and fluorescent analysis at a lower concentration of H2S, demonstrating a promising strategy for on-site visual detection of H2S.

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Section: Introductionmentioning

confidence: 99%

Label-Free, Reusable, Equipment-Free, and Visual Detection of Hydrogen Sulfide Using a Colorimetric and Fluorescent Dual-Mode Sensing Platform

Liu

Wan

et al. 2023

Anal. Chem.

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“…Hydrogen sulfide (H 2 S) is a common gas. In addition to its natural source, a large amount of H 2 S is also produced in petroleum refining, sewage treatment, textile treatment, and other human activities [ 1 ]. However, H 2 S is highly poisonous and corrosive.…”

Section: Introductionmentioning

confidence: 99%

Pd/Pt-Bimetallic-Nanoparticle-Doped In2O3 Hollow Microspheres for Rapid and Sensitive H2S Sensing at Low Temperature

et al. 2023

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H2S is a poisonous gas that is widespread in nature and human activities. Its rapid and sensitive detection is essential to prevent it from damaging health. Herein, we report Pd- and Pt-bimetallic-nanoparticle-doped In2O3 hollow microspheres that are synthesized using solvothermal and in situ reduction methods for H2S detection. The structure of as-synthesized 1 at% Pd/Pt-In2O3 comprises porous hollow microspheres assembled from In2O3 nanosheets with Pd and Pt bimetallic nanoparticles loaded on its surface. The response of 1 at% Pd/Pt-In2O3 to 5 ppm H2S is 140 (70 times that of pure In2O3), and the response time is 3 s at a low temperature of 50 °C. In addition, it can detect trace H2S (as low as 50 ppb) and has superior selectivity and an excellent anti-interference ability. These outstanding gas-sensing performances of 1 at% Pd/Pt-In2O3 are attributed to the chemical sensitization of Pt, the electronic sensitization of Pd, and the synergistic effect between them. This work supplements the research of In2O3-based H2S sensors and proves that Pd- and Pt-bimetallic-doped In2O3 can be applied in the detection of H2S.

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“…For this reason, research efforts are devoted to developing novel H 2 S utilization 8,9 and valorization technologies as an alternative to the conventional treatments. 10,11 These technologies are highly attractive because they allow the simultaneous H 2 S abatement and the production of high value-added chemicals. When H 2 S is converted, two different kinds of products can be obtained: H 2 -based and sulfurbased.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Because of the increasing sulfur content in natural gas, − the key player fuel of the energy transition era, and the stricter environmental regulations, managing the rising H 2 S level is becoming a challenge. For this reason, research efforts are devoted to developing novel H 2 S utilization , and valorization technologies as an alternative to the conventional treatments. , These technologies are highly attractive because they allow the simultaneous H 2 S abatement and the production of high value-added chemicals. When H 2 S is converted, two different kinds of products can be obtained: H 2 -based and sulfur-based.…”

Section: Introductionmentioning

confidence: 99%

On the Effect of the Reaction Medium on the HydroClaus Process: A Novel Sustainable H₂S Valorization Strategy

Spatolisano

Guido

Sangiorgio

et al. 2023

ACS Sustainable Chem. Eng.

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Hydrogen sulfide (H2S) is becoming a critical issue to manage, due to the increasing sulfur content in the processed gas together with the stricter environmental regulations. Novel alternatives are being developed for the H2S abatement and conversion to valuable chemicals. Among them, the HydroClaus process, patented by Eni S.p.A., deserves attention. This technology aims at converting H2S and SO2 into a hydrophilic mixture of sulfur and sulfur-rich compounds, polythionates, to be used as a fertilizer. An improved configuration for an efficient water management is proposed in this work. The process operability has been demonstrated at the bench scale, through an ad hoc experimental campaign. For the technology scale-up, a flowsheet has been set up and its performances have been assessed in terms of heat and material balances and CO2 emissions. Results reveal that the modified HydroClaus process can be a valid solution for an effective H2S valorization, also considering that no direct CO2 emissions are released. Moreover, since only electric power is required, a further reduction of the indirect CO2 emissions is expected, if renewable sources can be exploited for this purpose.

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A state-of-the-art review on capture and separation of hazardous hydrogen sulfide (H2S): Recent advances, challenges and outlook

Cited by 53 publications

References 183 publications

Label-Free, Reusable, Equipment-Free, and Visual Detection of Hydrogen Sulfide Using a Colorimetric and Fluorescent Dual-Mode Sensing Platform

Label-Free, Reusable, Equipment-Free, and Visual Detection of Hydrogen Sulfide Using a Colorimetric and Fluorescent Dual-Mode Sensing Platform

Pd/Pt-Bimetallic-Nanoparticle-Doped In2O3 Hollow Microspheres for Rapid and Sensitive H2S Sensing at Low Temperature

On the Effect of the Reaction Medium on the HydroClaus Process: A Novel Sustainable H₂S Valorization Strategy

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A state-of-the-art review on capture and separation of hazardous hydrogen sulfide (H2S): Recent advances, challenges and outlook

Cited by 53 publications

References 183 publications

Label-Free, Reusable, Equipment-Free, and Visual Detection of Hydrogen Sulfide Using a Colorimetric and Fluorescent Dual-Mode Sensing Platform

Label-Free, Reusable, Equipment-Free, and Visual Detection of Hydrogen Sulfide Using a Colorimetric and Fluorescent Dual-Mode Sensing Platform

Pd/Pt-Bimetallic-Nanoparticle-Doped In2O3 Hollow Microspheres for Rapid and Sensitive H2S Sensing at Low Temperature

On the Effect of the Reaction Medium on the HydroClaus Process: A Novel Sustainable H2S Valorization Strategy

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On the Effect of the Reaction Medium on the HydroClaus Process: A Novel Sustainable H₂S Valorization Strategy