R: Biochar Characterisation and Adsorption Data Analysis

# Biochar Characterisation and Adsorption Data Analysis

## Documentation for package ‘biocharkit’ version 0.2.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

assign_ftir_peaks | Assign FTIR peak wavenumbers to functional groups
baseline_correct | Baseline-correct an FTIR spectrum
bet_surface_area | BET surface area from multi-point gas adsorption data
correlation_matrix | Pairwise correlation matrix with p-values
find_ftir_peaks | Automatically pick peaks from a full FTIR spectrum
fit_confint | Confidence intervals for a fitted isotherm, kinetics, or van't Hoff model
fit_dr | Fit the Dubinin-Radushkevich (D-R) adsorption isotherm
fit_elovich | Fit the Elovich kinetics model
fit_freundlich | Fit the Freundlich adsorption isotherm
fit_intraparticle | Fit the intraparticle diffusion (Weber-Morris) kinetics model
fit_isotherm_batch | Fit an adsorption isotherm separately for each group in a data frame
fit_kinetics_batch | Fit adsorption kinetics separately for each group in a data frame
fit_langmuir | Fit the Langmuir adsorption isotherm
fit_pfo | Fit pseudo-first-order adsorption kinetics
fit_pso | Fits 'qt = (k2 * qe^2 * t) / (1 + k2 * qe * t)' by nonlinear least squares.
fit_sips | Fit the Sips (Langmuir-Freundlich) adsorption isotherm
fit_temkin | Fit the Temkin adsorption isotherm
fit_vant_hoff | Van't Hoff thermodynamic analysis of adsorption
ftir_band_reference | Reference table of common FTIR functional-group band assignments
functional_group_density | Functional group density from a full FTIR spectrum
parse_sbc_id | Parse structured biochar sample identifiers
pct_mass_change | Percentage mass loss between two mass measurements
plot_ftir_spectrum | Plot an FTIR spectrum
plot_isotherm | Plot an adsorption isotherm fit
plot_kinetics | Plot a kinetics fit
proximate_analysis | Proximate analysis summary (moisture, volatile matter, ash, fixed carbon)
qe_batch | Batch adsorption capacity (qe)
read_ftir_txt | Read a two-column FTIR spectrum export
read_xrd_txt | Read a two-column XRD pattern export
removal_efficiency | Percentage removal efficiency
save_tiff | Save a base-graphics plot as a 600 dpi TIFF
sbc_example | Synthetic example biochar dataset
ultimate_ratios | Atomic ratios from ultimate (CHNS) elemental analysis
xrd_crystallinity_index | Peak-area crystallinity index from an XRD pattern
xrd_deconvolve | Simplified multi-Gaussian XRD peak deconvolution