1. Typical ATR FTIR spectra series for Poly(Sodium 4-Styrene sulfonate) (PSS) collecting
at the TiO2/Water interface for PSS concentrations ranging from 1.25 x 10-7 M to 1.85
x 10-6 M.

2. Isotherm for the collection of PSS at TiO2/Water
interface for the data shown in the previous figure.

3. Data for the PSS accumulating a the TiO2/water interface for no centyl pyridinium
bromide (CPBM) added (red dots), 3.60 x 10-7 M CPBM added (green dots), and
1.02 x 10-5 M CPBM added (red dots). Average uncertainties in the above data is
as follows: no CPBM 6.4% RSD, 3.60x10-7 M CPBM 14% RSD, 1.02 x 10-5 M CPBM
14% RSD.

4. CH2 stretches of the PSS have been subtracted out of the data.
mol ratio CPBM/PSS = 40/1
mol ratio CPBM/PSS = 90/1
Behavior of the CPBM (1.02 x 10-5 M) at the TiO2/water interface as a function of
solution phase PSS concentration. This data is from the CH2 stretching modes in
the wavenumber region of the IR spectrum. The contributions of the
CH2 stretches of the PSS have been subtracted out of the data.

5. Accumulation of PSS at the TiO2/water interface with 1
Accumulation of PSS at the TiO2/water interface with 1.04 x 10-4 M CPBM
present. Initially there is no accumulation of the PSS at the interface. The
Overall amount of PSS that accumulate at the TiO2/water interface is not significantly
different for this system than for systems with no CPBM present or 1.02 x 10-5
M CPBM present (See slide 3). Average uncertainties of the data points are 14% RSD.

6. regions are seen and labeled on the graph.
mol ratio CPBM/PSS = 190/1
mole ratio CPBM/PSS = 60/1
CBPM alone
Behavior of the CPBM (1.04 x 10-4 M) at the TiO2/water interface as a function of
solution phase PSS concentration. This data is from the CH2 stretching modes in
the wavenumber region of the IR spectrum. The contributions of the
CH2 stretches of the PSS have been subtracted out of the data. Three distinct
regions are seen and labeled on the graph.