A Low‐Cost 3D Spherical Evaporator with Unique Surface Topology and Inner Structure for Solar Water Evaporation‐Assisted Dye Wastewater Treatment

Abstract The desalination and purification of sea or brackish water by utilizing solar energy are considered to be the most feasible solutions to overcome the problems of water shortage and pollution. In this study, a bifunctional Cu2-xSe-decorated hierarchical TiO2 nanotube mesh (CTNM) was designed and synthesized successfully for both solar water evaporation and photodegradation. Cu2-xSe enhances solar light absorption and solar water evaporation performance as a low-cost absorber because of its localized surface plasmon resonance (LSPR) effect. Meanwhile, the formation of the p-Cu2-xSe/n-TiO2 heterojunction improves the photodegradation performance by increasing separation and transport of photogenerated charge carriers. Hence, CTNM has a relatively high solar water evaporation conversion efficiency of 83.06% and also can photodegrade 95% of methyl orange after 3 h under 2.5 kW m−2 simulated solar irradiation, which demonstrate the extremely high utilization ratio of solar energy of CTNM.

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Innovative salt-blocking technologies of photothermal materials in solar-driven interfacial desalination

Journal of Materials Chemistry A ◽

10.1039/d1ta03610f ◽

2021 ◽

Author(s):

Fahad Nawaz ◽

Yawei Yang ◽

Shihan Zhao ◽

Minhao Sheng ◽

Cheng Pan ◽

...

Keyword(s):

Low Cost ◽

Rapid Development ◽

Water Desalination ◽

Water Evaporation ◽

Solar Water

In recent decades, a rapid development of solar water evaporation has been ushered, which focus on low-cost and energy water desalination. For this purpose, different photothermal materials have been introduced...

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Isotherm Studies of Malachite Green Removal by Yarn Processing Sludge-Based Activated Carbon

Chemistry-Didactics-Ecology-Metrology ◽

10.2478/cdem-2019-0011 ◽

2019 ◽

Vol 24 (1-2) ◽

pp. 127-134

Author(s):

Shu Hui Tang ◽

Muhammad Abbas Ahmad Zaini

Keyword(s):

Wastewater Treatment ◽

Activated Carbon ◽

Low Cost ◽

Industrial Applications ◽

Koh Activation ◽

Treatment Technique ◽

Dye Wastewater ◽

High Carbon Content ◽

Preparation Methods ◽

Operation Cost

Abstract Adsorption is an effective wastewater treatment technique which has been widely used in various industrial applications. However, the high operation cost involving commercial activated carbon in industrial processes is the main drawback. Sewage sludge is an auspicious precursor of activated carbon owing to its high carbon content, rich functional groups, low cost, high availability and abundance. This research was aimed to establish the feasibility of converting yarn processing sludge into activated carbon by KI + KOH activation and char at 700 °C for 1 h. The effect of preparation strategies on the properties of sludge-based adsorbents (SBA) was reviewed. The applications of SBAs in the removal of dyes and model pollutants were discussed. The results from this study proved that the preparation of yarn processing sludge-based activated carbon via KI + KOH activation is feasible and effective in the adsorption of dye. This paper provides further insight on the preparation methods of sludge-based adsorbents and dye wastewater treatment using these adsorbents.

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A Gelation‐Stabilized Strategy towards Photothermal Architecture Design for Highly Efficient Solar Water Evaporation

Solar RRL ◽

10.1002/solr.202100133 ◽

2021 ◽

Author(s):

Wei Zhang ◽

Qing Chang ◽

Chaorui Xue ◽

Jinlong Yang ◽

Shengliang Hu

Keyword(s):

Water Evaporation ◽

Architecture Design ◽

Solar Water ◽

Highly Efficient

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Titanium Nitride Nanodonuts Synthesized from Natural Ilmenite Ore as a Novel and Efficient Thermoplasmonic Material

Nanomaterials ◽

10.3390/nano11010076 ◽

2020 ◽

Vol 11 (1) ◽

pp. 76

Author(s):

Thanh-Lieu Thi Le ◽

Lam Tan Nguyen ◽

Hoai-Hue Nguyen ◽

Nguyen Van Nghia ◽

Nguyen Minh Vuong ◽

...

Keyword(s):

Titanium Nitride ◽

Low Cost ◽

Visible Region ◽

Resonance Absorption ◽

Solar Light ◽

Localized Surface Plasmon ◽

Water Evaporation ◽

Energy Applications ◽

Simulated Solar Light ◽

New Class

Nanostructures of titanium nitride (TiN) have recently been considered as a new class of plasmonic materials that have been utilized in many solar energy applications. This work presents the synthesis of a novel nanostructure of TiN that has a nanodonut shape from natural ilmenite ore using a low-cost and bulk method. The TiN nanodonuts exhibit strong and spectrally broad localized surface plasmon resonance absorption in the visible region centered at 560 nm, which is well suited for thermoplasmonic applications as a nanoscale heat source. The heat generation is investigated by water evaporation experiments under simulated solar light, demonstrating excellent solar light harvesting performance of the nanodonut structure.

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Sandwich hydrogel with confined plasmonic Cu/carbon cells for efficient solar water purification

Journal of Materials Chemistry A ◽

10.1039/d1ta02927d ◽

2021 ◽

Author(s):

Cheng Tian ◽

Chengcheng Li ◽

Delun Chen ◽

Yifan Li ◽

LEI XING ◽

...

Keyword(s):

Solar Energy ◽

Water Purification ◽

Low Cost ◽

Energy Utilization ◽

Solar Water ◽

Solar Energy Utilization

Designing low-cost and efficient evaporation system to maximize solar energy utilization is of great importance for the emerging solar water purification technologies. Herein, we demonstrate a universal sandwich hydrogel by...

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