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C 2017, 3(2), 12; doi:10.3390/c3020012

Wool Carpet Dye Adsorption on Nanoporous Carbon Materials Derived from Agro-Product

Amrit Science Campus, Tribhuvan University, Kathmandu 44613, Nepal
Central Department of Chemistry, Tribhuvan University, Kirtipur Kathmandu 44613, Nepal
International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Ibaraki Tsukuba 305-0044, Japan
Department of Science and Humanities, Institute of Engineering, Tribhuvan University, Pulchowk Campus, Lalitpur 44700, Nepal
Author to whom correspondence should be addressed.
Academic Editor: Lidong Shao
Received: 7 April 2017 / Revised: 20 April 2017 / Accepted: 24 April 2017 / Published: 26 April 2017
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In this paper, wool carpet dye adsorption properties of nanoporous activated carbon materials (NCMs) prepared from bamboo agro-product is reported. Bamboo cane powder was chemically activated with phosphoric acid at different temperatures (400, 500, and 600 °C) at an impregnation ratio of 1:1. We found that the specific surface area and the total pore volume of NCM increases with temperature giving the highest surface area and pore volume ca. 2130 m2·g−1 and 2.69 cc·g−1 at 600 °C. Owing to superior surface textural properties, bamboo-derived NCM showed excellent adsorption capacity for wool carpet dyes Lanasyn orange (LO) and Lanasyn gray (LG). The adsorption phenomena could be described by Langmuir/Freundlich adsorption isotherm models. The maximum adsorption capacity was ca. 2.60 × 103 and 3.04 × 103 mg·g−1 for LO and LG, respectively. The adsorption followed pseudo second order kinetics with the second order rate constant of 1.24 × 10−3 g·mg−1·min−1 (LO) and 7.69 × 10−4 g·mg−1·min−1 (LG), respectively. This study demonstrated that the high surface area NCMs prepared from agro-product can be used as efficient and cost-effective adsorbent materials for the removal of dyes from industrial effluent. View Full-Text
Keywords: nanoporous carbon materials; wool carpet dyes; Lanasyn orange; Lanasyn gray; adsorption kinetics nanoporous carbon materials; wool carpet dyes; Lanasyn orange; Lanasyn gray; adsorption kinetics

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pradhananga, R.R.; Adhikari, L.; Shrestha, R.G.; Adhikari, M.P.; Rajbhandari, R.; Ariga, K.; Shrestha, L.K. Wool Carpet Dye Adsorption on Nanoporous Carbon Materials Derived from Agro-Product. C 2017, 3, 12.

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