@article{MAKHILLJEAS201914617597,
    title = {Activated Carbon via. Pyropysis of Tea Industry Waste Biochar with
KOH Activation: Preparation and Characterization},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {14},
    number = {6},
    pages = {1755-1759},
    year = {2019},
    issn = {1816-949x},
    doi = {jeasci.2019.1755.1759},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2019.1755.1759},
    author = {Trinh,Thuan,Bich,Hien,Nhan,Van,Nguyen,Vu and},
    keywords = {Activated carbon,tea industry waste,KOH activation,characterization,environmental,pollutants},
    abstract = {Tea waste is a abundant and low-cost biomass resource for preparation of Activated Carbons (ACs)
The present study addressed a pyrolysis route using KOH as an activating agent to develop with new pores
of the ACs from tea industry waste. The effects of activation temperatures (600-800°C) on the structure of ACs
were investigated. Characteristics of ACs were analyzed by several physical techniques such as analysis
methods including X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Thermo-Gravimetric
Analysis (TGA) and nitrogen adsorption/desorption. The characterization results indicated that the
as-synthesized ACs possess amorphous structure for all activation temperatures and the largest BET specific
surface area (1107.5 m<sup>2</sup>/g) accompanied with the highest pore volume (0.579 cm<sup>3</sup>/g) at 800&deg;C. The average
micropore size fluctuated in the range of 5-7 A depending on the activation temperature. Therefore, the
KOH-activated carbons with high porosity can offer a great adsorption capacity as promising for applications
in many areas especially in removal of environmental pollutants.}
    }