Chengjie Xiang

Chengjie Xiang
Shanghai Jiao Tong University | SJTU

About

37
Publications
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1,161
Citations

Publications

Publications (37)
Article
Full-text available
Sorption-based atmospheric water harvesting (SAWH) has received unprecedented attention as a future water and energy platform. However, the water productivity of SAWH systems is still constrained by the slow sorption kinetics at material and component levels and inefficient condensation. Here, we report a facile method to prepare hygroscopic interc...
Article
In recent years, solar-powered, passive adsorption-based air–water harvesting has shown tremendous potential in addressing freshwater shortages in arid regions. Although remarkable progress has been witnessed in unlocking the potential of new adsorbents in the laboratory, the productivity of freshwater is still limited by the slow adsorption kineti...
Article
Harvesting clean energy from moist air has been a promising solution for a sustainable future. However, developing a highly efficient, large-scale, integrated moisture-induced electricity generator is still challenging. In a recent Joule paper, Qu and co-workers reported fully printed planar moisture-induced electricity generator (MEG) arrays with...
Article
Full-text available
Sorption‐based atmospheric water harvesting (SAWH) holds huge potential due to its freshwater capabilities for alleviating water scarcity stress. The two essential parts, sorbent material and system structure, dominate the water sorption–desorption performance and the total water productivity for SAWH system together. Attributed to the superioritie...
Article
Rapid water adsorption-desorption kinetics are the key to realizing exceptional yield in passive atmospheric water harvesting (PAWH). Recently in Nature Nanotechnology, Jia Zhu et al. developed a nanoporous carbon with rapid water adsorption kinetics and excellent photothermal properties to achieve PAWH with high yield. Herein, this facile method c...
Article
Significant progress has been made in direct air capture (DAC) in recent years. Evidence suggests that the large-scale deployment of DAC by adsorption would be technically feasible for gigatons of CO2 capture annually. However, great efforts in adsorption-based DAC technologies are still required. This review provides an exhaustive description of m...
Article
Full-text available
Sorption-based atmospheric water harvesting (SAWH), as a promising method of overcoming water scarcity in arid areas, has attracted increasing attention. Numerous excellent adsorbents have been developed to exercise their vast potential. However, in terms of device design, the conventional structure that stacks vast adsorbents into a plane not only...
Article
Full-text available
Sorption-based atmospheric water harvesting (SAWH) is recognized as a feasible and sustainable approach to address global water scarcity in arid regions. However, easy-to-prepare and inexpensive salt-based sorbents have stringent requirements referring to sorption duration and environmental humidity; otherwise, the leakage of salt solution can occu...
Article
As a promising technology for water scarcity alleviation, Atmospheric Water Harvesting (AWH) appeals for adsorbents with high performance, low cost, low environmental impact, and low energy consumption for practical application. Herein, a super hygroscopic complex based on natural Loofah grafted Calcium Alginate sorbent with Ink (ILCA) with compreh...
Article
Full-text available
Efficient extraction of crude oil, the major energy resource of current concern and high demand worldwide, is of paramount importance in both energy and environmental fields. However, it remains a great challenge to separate the crude oil-in-water emulsions with an ultralow oil content of <200ppm. Here, the three-dimensional and superwetting channe...
Article
Full-text available
The vanadium redox flow battery (VRFB) is a large‐scale energy storage technique and has been regarded as a promising candidate to integrate intermittent renewable energy with the grid. Its long‐term stability has so far been limited by the core component, an ion exchange membrane with low ion selectivity. Here a hybrid membrane with superhydrophil...
Article
Full-text available
It is appealing to fill up TiO2 nanotube arrays with other semiconductors to form three‐dimensional heterojunctions of interdigitated feature. This benefits from the large interfacial area for rapid charge separation and the ordered vertical channels for oriented charge transport. However, it remains a great challenge to fill the nanotubes with den...
Chapter
This chapter contains sections titled: Introduction Quantum Dots and Their Properties Synthetic Methods for Quantum Dots Quantum Dot Solar Cells Challenges and Perspectives
Article
Nanostructured coatings of superwettability, especially at the outer and inner surfaces of large-scale tubes, have generated broad interests for anti-biofouling, drag reduction, condensation heat transfer, and so on. The contact angle, a major parameter to evaluate the wettability, is derived and gradually modified mainly for flat surfaces after Th...
Article
A solar cell, capable of directly converting solar energy into electricity, bears a Shockley-Queisser limit of about 31% based on a single pn junction. In general, less than 50% of the solar irradiation spectrum (mostly in the ultraviolet and visible regions) can be utilized for the conversion. As such, the theoretical utilization rate is less than...
Article
The commercial Nafion proton exchange membranes are most widely used in vanadium redox flow batteries (VRBs). However, their poor ion selectivity and high cost significantly limits the further development of the VRB. Herein, a green biopolymer, lignin, was firstly employed as the additive in the pristine SPEEK membrane to replace the Nafion membran...
Data
Video S2. Separation Process Driven by Gravity with a Device Shown in Figure 2A, Related to Figure 2 A superhydrophilic Type III foam was used in this video.
Data
Video S6. Visual Performance of Capillary Force in a Vertical Type III Form, Related to Figure 1
Data
Video S1. Drop Impact Tests Performed to Verify Surface Wettability Characteristics of Type II and Type III Foams, Related to Figure 1
Data
Video S4. Visual Performance of Oil-in-Water Emulsion Separation Using the Single-Sided Foam, Related to Figure 2
Data
Video S3. Separation Process Driven by Gravity with a Device Shown in Figure 2A, Related to Figure 2 An original Ti foam was used in this video.
Article
Full-text available
Separation of oil/water mixtures has been one of the leading green technologies for applications such as oil recovery and water purification. Conventional methods to separate oil from water are based on phase separation via physical settlement or distillation. However, challenges still remain in the effective extraction of micron-sized oil droplets...
Article
Large scale and mass production of uniform nanostructured materials have been a focusing challenge. Anodic titania nanotubes have been widely employed in various applications, which are usually demonstrated with limited size and planar geometry. In this study, a coaxial electrochemical anodization approach is explored and reported. With this method...
Article
We report a feasible and facile approach of coaxial anodic oxidation under dynamic electrolyte conditions for patterning Ti tubes. Uniform TiO2 nanotube arrays are prepared at the inner surface of Ti tubes with 930 mm in length and 3 mm in diameter, being the largest aspect ratio ever reported. Interestingly, a resulting structure of nanowire bundl...
Article
In this paper, Ti1−xAlxN/Ag/Ti1−xAlxN sandwich structure low-emissivity (Low-E) films were prepared by radio frequency reactive magnetron sputtering (RF-MS) on glass substrates. The morphology, chemical state and performance of the film system were characterized by FIB-SEM, XPS, FT-IR, UV–vis spectrophotometer and electrochemical workstation. The r...
Article
A novel SnO2/graphene composite has been synthesized via an in situ chemical synthesis method, in which single crystal SnO2 nanosheets are uniformly grown on graphene support. The as-prepared products were characterized by X-ray diffraction, field emission scanning electron microscope, transmission electron microscope, Thermogravimetric analyses an...

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