2011
DOI: 10.1016/j.cej.2011.09.044
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Microwave-assisted preparation of bamboo charcoal-based iron-containing adsorbents for Cr(VI) removal

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Cited by 74 publications
(24 citation statements)
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“…In metal-carbon systems, the thermal pre-treatment nature (neutral/reductive/ oxidative) may change the surface area or porosity [20]. In our previous study [21], a bamboo charcoal-based, iron-containing adsorbent (Fe-BC) was developed for Cr(VI) removal, which was prepared using bamboo charcoal (BC) as a supporting medium for ferric iron that was impregnated by Fe 2 (SO4) 3 and H 2 SO 4 simultaneous treatment, followed by microwave heating. The approach is based on hypotheses that BC is a good microwave absorber, which receives microwave energy directly through dipole rotation and ionic conduction.…”
Section: Introductionmentioning
confidence: 99%
“…In metal-carbon systems, the thermal pre-treatment nature (neutral/reductive/ oxidative) may change the surface area or porosity [20]. In our previous study [21], a bamboo charcoal-based, iron-containing adsorbent (Fe-BC) was developed for Cr(VI) removal, which was prepared using bamboo charcoal (BC) as a supporting medium for ferric iron that was impregnated by Fe 2 (SO4) 3 and H 2 SO 4 simultaneous treatment, followed by microwave heating. The approach is based on hypotheses that BC is a good microwave absorber, which receives microwave energy directly through dipole rotation and ionic conduction.…”
Section: Introductionmentioning
confidence: 99%
“…Alternative chemical activation agents have been investigated to overcome the drawbacks of ZnCl 2 , including ferric and ferrous salts (Liu and Zhang, 2010;Wang et al, 2011). There are a number of advantages of using ferric salts: First, the derived porous materials have improved BET surface area without Zn contamination.…”
Section: Introductionmentioning
confidence: 99%
“…Metallic iron endows the material with relatively strong reducing power (Li and Zhang, 2007;Xi et al, 2010), and high capacity to immobilize pollutants (Neumann et al, 2013;Su et al, 2014aSu et al, , 2014bZhang et al, 2013). The major disadvantage of zero-valent iron doped carbon is the complicated manufacturing procedure, which involves impregnation (Liu and Zhang, 2010;Wang et al, 2011). Impregnation requires considerable time and energy, and thus, it is important to optimize the manufacturing procedure to save time and energy.…”
Section: Introductionmentioning
confidence: 99%
“…Cr(VI) has been classified as a Group I human carcinogen by International Agency for Research on Cancer (IARC) and as a Group A inhalation carcinogen by US Environmental Protection Agency (EPA) (Hamadi et al, 2001). Cr(VI) is considered as a common teratogenic, mutagenic, and carcinogenic chemicals and the presence of Cr(VI) ions in the environment is posing serious problems and causing great public concern, which significantly motivates the investigation and development of new and improved materials to address the problems (Wang et al, 2011;Zhou et al, 2008). In addition, a long-term exposure of Cr(VI) to mankind may cause severe physical disorders, such as dermatitis and the malfunctioning of the liver, kidney, circulatory and nervous systems (Dubey and Gopal, 2007).…”
Section: Introductionmentioning
confidence: 99%